Textbook of applied entomology
SRIVASTAVA, K.P.
Textbook of applied entomology - 2nd rev ed - Ludhiana 2003 - 2v
INSECT PESTS -- CONTROL
INSECT PESTS -- CONTROL
632.9 S66T
Textbook of applied entomology - 2nd rev ed - Ludhiana 2003 - 2v
INSECT PESTS -- CONTROL
INSECT PESTS -- CONTROL
632.9 S66T