Biological control of insects
Sweetman, H.L.
Biological control of insects With a chapter on weed control by H.L. Sweetman - New York 1936 - 461 p.
With a foreword by L.O. Howard
Biological Control
Insects
Weed Control
632.96 / S 974 B
Biological control of insects With a chapter on weed control by H.L. Sweetman - New York 1936 - 461 p.
With a foreword by L.O. Howard
Biological Control
Insects
Weed Control
632.96 / S 974 B