TY - BOOK ED - Bindra, O. S. ED - Kalra,R. L. TI - Progress and problems in pesticide - residue analysis U1 - 574.19285 PY - 1973/// CY - Ludhiana PB - Punjab Agricultural university and Indian council of Agricultural Research N1 - Proceedings of a symposium, Ludhiana, 18-19 Nov. 1971 ER -