TY  - BOOK
AU  - Copping, Leonard G.
TI  - Crop protection agents from nature : : natural products and analogues 
SN  - 9780854044146
U1  - 632.9 CRO 
PY  - 1996///
CY  - Cambridge, UK : 
PB  - Royal Society of Chemistry, 
KW  - Protection of plants
KW  - Biological pest control agents.
KW  -  Pests -- Biological control
N1  - BIB
ER  -