Cites del registre
Cita APA (7th ed.)
Howell, S. N. G., Patteson, J. B., & Shearwater, D. (2012). Petrels, albatrosses, and storm-petrels of North America: A photographic guide. Princeton University Press.
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Cita Chicago (17th ed.)
Howell, Steve N. G., J. Brian Patteson, i Debra Shearwater. Petrels, Albatrosses, and Storm-petrels of North America: A Photographic Guide. Princeton: Princeton University Press, 2012.
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Cita MLA (9th ed.)
Howell, Steve N. G., et al. Petrels, Albatrosses, and Storm-petrels of North America: A Photographic Guide. Princeton University Press, 2012.
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Atenció: Aquestes cites poden no estar 100% correctes.