Textbook of applied entomology
SRIVASTAVA, K.P
Textbook of applied entomology - rev. 2nd ed - Ludhiana 1996 - 2V
INSECTS PESTS -- CONTROL
INSECTS PESTS -- CONTROL
632.9 S66T
Textbook of applied entomology - rev. 2nd ed - Ludhiana 1996 - 2V
INSECTS PESTS -- CONTROL
INSECTS PESTS -- CONTROL
632.9 S66T