Elements of economic entomology
DAVID, B Vasantharaj
Elements of economic entomology - Madras 1978 - 514p
INSECTS, INJURIOUS AND BENEFICIAL
INSECTS -- CONTROL INSECTS, INJURIOUS AND BENEFICIAL
632.7 D19E
Elements of economic entomology - Madras 1978 - 514p
INSECTS, INJURIOUS AND BENEFICIAL
INSECTS -- CONTROL INSECTS, INJURIOUS AND BENEFICIAL
632.7 D19E