Não informado. (1964). Ornithological monographs. American Ornithologists' Union.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Ornithological Monographs. Washington: American Ornithologists' Union, 1964.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Ornithological Monographs. American Ornithologists' Union, 1964.
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