Não informado. (1939). Agenda and Abstracts of the Scientific Meetings. Zoological Society of London.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Agenda and Abstracts of the Scientific Meetings. London: Zoological Society of London, 1939.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Agenda and Abstracts of the Scientific Meetings. Zoological Society of London, 1939.
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