393 L 0023: Council Directive 93/23/EEC of 1 June 1992 on the statistical surveys to be carried out on pig production (OJ No L 149, 21.6.1993, p. 1).
393 L 0023: Treoir 93/23/CEE ón gComhairle an 1 Meitheamh 1993 maidir leis na suirbhéanna staidrimh atá le cur i gerích ar tháirgeadh mue (IO Uimh. L 149, 21.6.1993, Ich. 1).