Pesticides Information. v.4, 1978-79
Bahl, H.S., ed.
Pesticides Information. v.4, 1978-79 edited by H.S. Bahl - New Delhi Pesticides Association of India 1978 - v.4, varies p.; 28cm.
Pesticides Information. v.4, 1978-79 edited by H.S. Bahl - New Delhi Pesticides Association of India 1978 - v.4, varies p.; 28cm.