Pesticides Information. v.6, 1980
Mann, B.P.S., ed.
Pesticides Information. v.6, 1980 edited by B.P.S. Mann - New Delhi Pesticides Association of India 1980 - v.6, varies p.; 28cm.
Pesticides Information. v.6, 1980 edited by B.P.S. Mann - New Delhi Pesticides Association of India 1980 - v.6, varies p.; 28cm.