Proceedings of the Joint American-Soviet Conference on Use of Beneficial Organisms in the Control of Crop Pests, Washington, D.C., U.S.A., August 13-14, 1979

By Joint American-Soviet Conference on Use of Beneficial Organisms in the Control of Crop Pests (1979 Washington, D.C.), Jack R. Coulson, L. Larson, D. C.) Joint American-Soviet Conference on Use of Beneficial Organisms in the Control of Crop Pests (1979 : Washington