International Committee for Bird Preservation. Pan American Section. (1957). Research report. The Section.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रInternational Committee for Bird Preservation. Pan American Section. Research Report. New York, N.Y.: The Section, 1957.
एमएलए (8वां संस्करण) प्रशस्ति पत्रInternational Committee for Bird Preservation. Pan American Section. Research Report. The Section, 1957.
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