Ames, P. L. The morphology of the syrinx in passerine birds. Yale University. Peabody Museum of Natural History.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAmes, Peter L. The Morphology of the Syrinx in Passerine Birds. New Haven: Yale University. Peabody Museum of Natural History.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAmes, Peter L. The Morphology of the Syrinx in Passerine Birds. Yale University. Peabody Museum of Natural History.
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