Dyfyniad APA
ebrary, Inc, Lepczyk, C. A., & Warren, P. S. (2012). Urban bird ecology and conservation. University of California Press.
Dyfyniad Arddull Chicago
ebrary, Inc, Christopher A. Lepczyk, and Paige S. Warren. Urban Bird Ecology and Conservation. Berkeley: University of California Press, 2012.
Dyfyniad MLA
ebrary, Inc, et al. Urban Bird Ecology and Conservation. University of California Press, 2012.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.