Sutherland, W. J., Newton, I., & Green, R. (2004). Bird ecology and conservation: A handbook of techniques. Oxford University Press.
Chicago Style aipamenaSutherland, William J., Ian Newton, and Rhys Green. Bird Ecology and Conservation: A Handbook of Techniques. Oxford ; New York: Oxford University Press, 2004.
MLA aipamenaSutherland, William J., et al. Bird Ecology and Conservation: A Handbook of Techniques. Oxford University Press, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.