Beneficial insects:
SWAN, L.A
Beneficial insects: nature's alternatives to chemical insecticides animal predation, parasitism, desease organisms Lester A.Swan - New York Harper & Row 1964 - xvii,429p. ill.
59.62
INSECT PESTS-BIOLOGICAL CONTROL
ZOO 632.9 / SLn64
Beneficial insects: nature's alternatives to chemical insecticides animal predation, parasitism, desease organisms Lester A.Swan - New York Harper & Row 1964 - xvii,429p. ill.
59.62
INSECT PESTS-BIOLOGICAL CONTROL
ZOO 632.9 / SLn64