Não informado. (1932). Entomology. U.S. Department of Agriculture, Bureau of Entomology.
Citace podle Chicago (17th ed.)Não informado. Entomology. Washington: U.S. Department of Agriculture, Bureau of Entomology, 1932.
Citace podle MLA (8th ed.)Não informado. Entomology. U.S. Department of Agriculture, Bureau of Entomology, 1932.
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