The Ornithologists' and Oologists' Semi-Annual. Wilson Ornithological Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रThe Ornithologists' and Oologists' Semi-Annual. Wilson Ornithological Society.
एमएलए (9वां संस्करण) प्रशस्ति पत्रThe Ornithologists' and Oologists' Semi-Annual. Wilson Ornithological Society.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.