Pesticides Information. v.12, 1986-87
Mann, B.P.S., ed.
Pesticides Information. v.12, 1986-87 edited by B.P.S. Mann - New Delhi Pesticides Association of India 1986 - v.12, varies p.; 28cm.
Pesticides Information. v.12, 1986-87 edited by B.P.S. Mann - New Delhi Pesticides Association of India 1986 - v.12, varies p.; 28cm.