TY  - BOOK
AU  - Essig E. O.
TI  - College entomology
U1  - 595.7 
PY  - 1942///
CY  - New York
PB  - Macmillan Company
KW  - Entomology
KW  - Zoology -- Animals
N1  - entomology, insects, vector control
ER  -