Ecology of the pea aphid in the blue mountain area of eastern Washington and Oregon
Cooke, W.C.
Ecology of the pea aphid in the blue mountain area of eastern Washington and Oregon - Washington 1963 - 1-48 p. - Ecology, Mountain United States Department of Agriculture. Technical Bulletin No. 1287 .
Ecology of the pea aphid in the blue mountain area of eastern Washington and Oregon - Washington 1963 - 1-48 p. - Ecology, Mountain United States Department of Agriculture. Technical Bulletin No. 1287 .