TY  - BOOK
AU  - VIKRAM SINGH
TI  - Management of Helicoverpa armigera (Hubner) with Nucleopolyhedrovirus on berseem
U1  - T 633.32 V70M 
PY  - 2004///
CY  - Ludhiana
PB  - PAU
KW  - BERSEEM
ER  -