Não informado. (1888). Insect life. Department of Agriculture, Division of Entomology.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Insect Life. Washington: Department of Agriculture, Division of Entomology, 1888.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Insect Life. Department of Agriculture, Division of Entomology, 1888.
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