Não informado. (2000). Comparative Parasitology. Helminthological Society of Washington.
Lua i Stíl Chicago (17ú heag.)Não informado. Comparative Parasitology. Lawrence, Kan: Helminthological Society of Washington, 2000.
Lua MLA (8ú heag.)Não informado. Comparative Parasitology. Helminthological Society of Washington, 2000.
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