TY  - BOOK
AU  - Symposium on Biological Control in Crop Production, Beltsville, May 18-21,1980,
TI  - Biological control in crop production
T2  - Beltsville Symposia in Agricultural Research; no.5
U1  - 633.002:632.937 1980.5.18/21 (082.2) M1 
PY  - 1981///
CY  - London
PB  - Granada
KW  - Papavizas, George C. 
KW  - George C. Papavizas
KW  - Pest control,Biological control,Plant Protection
ER  -