TY  - BOOK
AU  - HARVEY L SWEETMAN
TI  - THE PRINCIPLES OF BIOLOGICAL CONTROL
U1  - TX-632.96 SW 36 
PY  - 1963///
CY  - IOWA
PB  - WM .C.BROWN COMPANY
KW  - BOILOGICAL CONTROL
N1  - COLLEGE PAS
ER  -