TY  - BOOK
AU  - David, B Vasantharaj
AU  - Kumaraswami. T
TI  - Elements of economic entomology
U1  - 595.8/DAV 
PY  - 1982///
CY  - Madras
PB  - Popular Book Depot
KW  - Beneficial insects
KW  - Insect pests--Control
ER  -