West, G. C. (2010). Do hummingbirds hum?: Fascinating answers to questions about hummingbirds. Rutgers University Press.
Chicago-Zitierstil (17. Ausg.)West, George C. Do Hummingbirds Hum?: Fascinating Answers to Questions About Hummingbirds. New Brunswick, N.J: Rutgers University Press, 2010.
MLA-Zitierstil (9. Ausg.)West, George C. Do Hummingbirds Hum?: Fascinating Answers to Questions About Hummingbirds. Rutgers University Press, 2010.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.