TY  - BOOK
AU  - SWAN, L.A
TI  - Beneficial insects: nature's alternatives to chemical insecticides animal predation, parasitism, desease organisms
U1  - ZOO 632.9 
PY  - 1964///
CY  - New York
PB  - Harper & Row
KW  - INSECT PESTS-BIOLOGICAL CONTROL
ER  -