Dyfyniad APA

ebrary, Inc, & Hill, R. A. (2012). Feed efficiency in the beef industry. Wiley-Blackwell.

Dyfyniad Arddull Chicago

ebrary, Inc, and Rodney A. Hill. Feed Efficiency in the Beef Industry. Ames, Iowa: Wiley-Blackwell, 2012.

Dyfyniad MLA

ebrary, Inc, and Rodney A. Hill. Feed Efficiency in the Beef Industry. Wiley-Blackwell, 2012.

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