ebrary, Inc, & Hill, R. A. (2012). Feed efficiency in the beef industry. Wiley-Blackwell.
芝加哥风格引文ebrary, Inc, 与 Rodney A. Hill. Feed Efficiency in the Beef Industry. Ames, Iowa: Wiley-Blackwell, 2012.
MLA引文ebrary, Inc, 与 Rodney A. Hill. Feed Efficiency in the Beef Industry. Wiley-Blackwell, 2012.
警告：这些引文格式不一定是100％准确.