TY  - BOOK
AU  - Symposium On Biological Control in Crop Production, Beltsvil
TI  - Biological control in crop production
U1  - 632.96 S99B 
PY  - 1981///
CY  - London
PB  - Granada
KW  - PEST CONTROL -- BIOLOGICAL CONTROL -- CONGRESSES
KW  - PEST CONTROL -- BIOLOGICAL CONTROL -- CONGRE
KW  - PLANTS, PROTECTION OF -- CONGRESSES
ER  -