Dyfyniad APA

ebrary, Inc, Collier, R. J., & Collier, J. L. (2012). Environmental physiology of livestock. Wiley-Blackwell.

Dyfyniad Arddull Chicago

ebrary, Inc, R. J. Collier, and J. L. Collier. Environmental Physiology of Livestock. Ames, Iowa: Wiley-Blackwell, 2012.

Dyfyniad MLA

ebrary, Inc, et al. Environmental Physiology of Livestock. Wiley-Blackwell, 2012.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.