Pests of field crops
Jones, F G W
Pests of field crops - 2nd ed. - New York: ST. Martin's Press, 1974 - 448p.
Agriculture
Insects Hymenoptera
632.7 / L4
Pests of field crops - 2nd ed. - New York: ST. Martin's Press, 1974 - 448p.
Agriculture
Insects Hymenoptera
632.7 / L4