Não informado. (1881). Bulletin of the United States Fish Commission, Department of Commerce. U.S. Department of Commerce.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Bulletin of the United States Fish Commission, Department of Commerce. Washington: U.S. Department of Commerce, 1881.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Bulletin of the United States Fish Commission, Department of Commerce. U.S. Department of Commerce, 1881.
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