TY  - BOOK
AU  - Lester A. Swan
TI  - Beneficial insects
U1  - 595.706 
PY  - 1964///
CY  - New York
PB  - Harper and Row
N1  - Lester A. Swan: Beneficial insects.  New York.  Harper and Row, 1964.--(595.706SWA)
ER  -