About 50 citations; last updated April 3, 2011
Adriano, F.T.; Manahan, M. (1931) The nutritive value of green, ripe and sport coconut (buko, niyog and makapuno). Philippine Agriculturist 20, 195-198.
Aldaba, V.C. (1931) A study of condition of coconut trees in the leaf-miner infested area I: effect of the leaf-miner attack on the coconuts and of cutting off the leaves. Philippine Journal of Agriculture 21 (1) 51-65.
Alzina, F.I. 1668. On the palms which are called Cocos and their great usefulness. Translator L.B. Uichanco (1931) Philippine Agriculturalist 20: 435-446.
Anon (1930-1931) Coconut diseases: visit by entomologist CO 530/180 UK Public Record Office.
Anon (1931) Cocology: Coconuts v. Whales for oil. Tropical Life 27 (10) 186.
Anon (1931) Cocology: Locusts among the palms of New Guinea. Tropical Life 27 (10) 185-186
Anon (1931) Coconut and copra industry CO 83/194/11 UK Public Record Office
Anon (1931) Coconut By-products. Tropical Life 27 (6) 106.
Anon (1931) Coconuts. Fiji Agric J. 4 (1), 46-51.
Anon (1931) Examination (of copra samples) by the Imperial Institute, London; remarks and conclusions). Fiji Agric J. 4 (3), 123-126.
Anon (1931) Grading copra for export. Fiji Agric J. 4 2) 70-71.
Anon (1931) Position of coconut industry on Rotuma CO 83/193/12 UK Public Record Office
Anon (1931) Preconceived notions and the coconut beetle. Tropical Agriculturalist (Ceylon) 75, 197-198.
Anon (1931) Rat control in coconut plantations. Fiji Agric J. 4 (1), 64-66.
Anon (1930-31) Technological Chemist, Coconut Research Scheme: appointment of Dr. R. Child 1930 Apr.-1931 Feb. CO 54/902/15 UK Public Record Office
Barker,S. G. [between 1931 and 1939?] Coir or cocoanut fibre:a report on its extraction and properties. 56p;typescript M0054035MU John Rylands University Library of Manchester.
Barnes, A.C. (1931) The grading of Fiji copra. Fiji Agric. J. 4, 71-77.
Belgrave, W.N.C. (1931) Coconuts on heavy soils. Malay agric. J. 19, 277-282.
Blackie, J.W. (1931) Deterioration of copra on storage. Fiji Agric. J. 4, 111-122.
Briones, G.R. (1931) A study on the salt requirements of coco-seedlings grown in pots. Phil Agric 20, 352-361.
Briton-Jones, H.R. (1931) Trinidad plant diseases. Tropical Agriculture (Trinidad) 8 (11) 300-302.
Bunting, B. (1931) The preparation of coir fibre. Malayan Agric. J. 19, 285-286.
Cooke, F.C. (1931) The economic aspects of copra research. Malay. agric. J. 19, 55.
Cooke, F.C. (1931) Factors of quality in copra. Malay. agric. J. 19, 128.
Cooke, F.C. (1931) Types of Malayan copra. Malay. agric. J. 19, 165-172.
Cooke, F.C. (1931) Harvesting of coconuts for copra production. Malay. agric. J. 19, 477-483.
Copeland, E.B. (1931) The coconut. Macmillan, London (third edition).
de Mel, C.N.E.J. (1931) Habits and control of the coconut black beetle. Tropical Agriculturalist (Ceylon) 77, 99-111
Duncan, E. (1931) The copra industry of Fiji. Fiji Agric. J. 4 (1) 11-13.
Dupertuis, C.B.T. (1931) La pollinisation artificielle du cocotier. L'agriculture pratique du pays chauds 8, 85-90.
Grist, D.H. (1931) The Malayan coconut census 1930. Malay. Agric. J. 19, 60-64.
Huggins, H.D. (1930) Coconut cultivation in British Guiana. Agric. J. Brit. Guiana 3. (see Tropical Agriculturalist (Ceylon) (1931) 75, 171-179)
Joachim, A.W.R. (1931) Green manuring of coconuts. Tropical Agriculturalist (Ceylon) 77, 325-335.
Jordao, A.A. (1931) O coco da Bahia em Sao Paulo. Boletim de Agricultura, Sao Paulo 32, 176-182.
Juliano, J.B. & Quisumbung, E. (1931) Morphology of the male flower of Cocos nucifera L. Phil. J. Sci. 45, [449-445].
Kidavu, M.G. (1931) Some experiences with coconut in the West Coast of Madras. Madras Agric. J. 19 (7) [pages] and Tropical Agriculturalist (Ceylon) 77 349-354.
Lever, R.J.A.W. (1931) Notes on coconut pests and noxious weeds in Fiji. Fiji Agric. J. 4, 77-80.
Marsden, H. & Skilton, F.J. (1931) Yields of toddy from coconut. Malayan Agric. J. 19, 287-290.
McLelland, T.B. (1931) Experiments with fertilizers on coconut palms and variation in palm productivity. Bull 34. Porto Rico AES 1-23 (also Tropical Agriculturalist (Ceylon) (1935) 77, 295-304).
Ocfemia, G. O. 1931. The probable nature of cadang-cadang disease of coconuts. The Philippine Agriculturist 26, 338–40.
Passmore, F.R. (1931) Depreciation of prepared copra due to moulds and insects. Bull. Imp. Inst. 29, 171-180.
Selga, M. 1931. Father Francisco Ignacia Alzino, S.J.: an agricultural observer of the seventeenth century. Philippine Agriculture. 20: 367-369.
Southall, C.L. (1931) Deterioration of copra on storage. Fiji Agric. J. 4 (3), 108-110.
Surridge, H.R. (1931) The improvement of Fiji copra. Agric. J. Fiji 4 (3) 90-108.
Trautwein Dupertuis, C.B. (1931) La pollinisation artificielle du cocotier. L'agriculture pratique du pays chauds 8, 85-90.
Wilder,G.P. (1931) Flora of Rarotonga. B.P.Bishop Mus. Bull. 86, 24-25.