Pesticides Information. v.7, 1981
Mann, B.P.S., ed.
Pesticides Information. v.7, 1981 edited by B.P.S. Mann - New Delhi Pesticides Association of India 1981 - v.7, varies p.; 28cm.
Pesticides Information. v.7, 1981 edited by B.P.S. Mann - New Delhi Pesticides Association of India 1981 - v.7, varies p.; 28cm.