Não informado. (1990). Journal of the Helminthological Society of Washington. Helminthological Society of Washington.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Journal of the Helminthological Society of Washington. Lawrence, Kan: Helminthological Society of Washington, 1990.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Journal of the Helminthological Society of Washington. Helminthological Society of Washington, 1990.
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