Dyfyniad APA
Landenberger, J. F., & Roosa, D. M. (2013). The raptors of Iowa. University of Iowa Press.
Dyfyniad Arddull Chicago
Landenberger, James F., and Dean M. Roosa. The Raptors of Iowa. Iowa City, IA: University of Iowa Press, 2013.
Dyfyniad MLA
Landenberger, James F., and Dean M. Roosa. The Raptors of Iowa. University of Iowa Press, 2013.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.