TY  - BOOK
AU  - Beltsville Symposia in Agricultural Research
TI  - Biological control in crop production
SN  - 0-246-115122
U1  - 632.9606 
PY  - 1981///
CY  - Granada
PB  - Allanheld Osmun
N1  - Beltsville Symposia in Agricultural Research: Biological control in crop production.  Granada.  Allanheld Osmun, 1981. 0-246-115122--(632.9606BEL)
ER  -