TY  - BOOK
AU  - Papavizas, George C
ED  - Beltsville Symposia in Agricultural Research, 5th
TI  - Biological control in crop production
T2  - Beltsville symposia in agricultural research
SN  - 0865980373
U1  - 632.96 
PY  - 1981///
CY  - New Jersey
PB  - Allanheld, Osmun & Co.
KW  - Biological control
ER  -