Howell, S. N. G., Patteson, J. B., & Shearwater, D. (2012). Petrels, albatrosses, and storm-petrels of North America: A photographic guide. Princeton University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHowell, Steve N. G., J. Brian Patteson, और Debra Shearwater. Petrels, Albatrosses, and Storm-petrels of North America: A Photographic Guide. Princeton: Princeton University Press, 2012.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHowell, Steve N. G., et al. Petrels, Albatrosses, and Storm-petrels of North America: A Photographic Guide. Princeton University Press, 2012.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.