Ecology of the pea aphid in the Blue Mountain area of eastern Washington and Oregon
Cook, William Carmichael, 1895-1967.
Ecology of the pea aphid in the Blue Mountain area of eastern Washington and Oregon - Washington] Agricultural Research Service, U.S. Dept. of Agriculture [1963] - 48 p. illus., maps. 24 cm. - Technical bulletin (United States. Department of Agriculture) ; no. 1287. .
agr63000445
Pea aphid.
S21 / .A72 no. 1287
Ecology of the pea aphid in the Blue Mountain area of eastern Washington and Oregon - Washington] Agricultural Research Service, U.S. Dept. of Agriculture [1963] - 48 p. illus., maps. 24 cm. - Technical bulletin (United States. Department of Agriculture) ; no. 1287. .
agr63000445
Pea aphid.
S21 / .A72 no. 1287