Mathematics in the lower and middle commercial and industrial schools of various countries represented in the International Commission on the Teaching of Mathematics
Taylor, E. H. (Edson Homer), 1874-; Smith, David Eugene, 1860-1944; Osgood, William F. (William Fogg), 1864-1943; Young, J. W. A. (Jacob William Albert), 1865-; International Commission on the Teaching of Mathematics