Dyfyniad APA
Lebbin, D. J., Parr, M., & Fenwick, G. H. (2010). The American Bird Conservancy guide to bird conservation. University of Chicago Press.
Dyfyniad Arddull Chicago
Lebbin, Daniel J., Mike Parr, and George H. Fenwick. The American Bird Conservancy Guide to Bird Conservation. Chicago: University of Chicago Press, 2010.
Dyfyniad MLA
Lebbin, Daniel J., et al. The American Bird Conservancy Guide to Bird Conservation. University of Chicago Press, 2010.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.