TY  - BOOK
AU  - Nigam, Prem Mohan
AU  - Kumar, Ashok
TI  - Plant protection: insect control 
U1  - 363.78 
PY  - 1991///
CY  - Emkay  Publications
PB  - Delhi
KW  - Plants, Protection of
KW  - Plants, Protection of--Environmental aspects
ER  -