TY  - BOOK
AU  - Birthal,P.S.
AU  - Birthal,P.S.
TI  - Economic Potential of Biological Substitutes for Agrochemicals
U1  - 632.96/BIR 
PY  - 2003///
CY  - New Delhi
PB  - National Centre for Agricultural Economics And Policy Research(ICAR)
KW  - Biological Substitutes
ER  -