Não informado. (1911). Proceedings of the Helminthological Society of Washington. Helminthological Society of Washington.
Chicago-referens (17:e uppl.)Não informado. Proceedings of the Helminthological Society of Washington. Washington: Helminthological Society of Washington, 1911.
MLA-referens (8:e uppl.)Não informado. Proceedings of the Helminthological Society of Washington. Helminthological Society of Washington, 1911.
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