Chemistry and action of insecticides.
SHEPARD (Harold H)
Chemistry and action of insecticides. - McGraw Hill New York 1951
CONTROL OF DISEASES
J:4K86 J1
J:4K86 J1
Chemistry and action of insecticides. - McGraw Hill New York 1951
CONTROL OF DISEASES
J:4K86 J1
J:4K86 J1