ebrary, Inc, & Leung, P. (2011). Healthy aging. World Scientific Pub. Co..
芝加哥风格引文ebrary, Inc, 与 Ping-Chung Leung. Healthy Aging. Hackensack, N.J.: World Scientific Pub. Co., 2011.
MLA引文ebrary, Inc, 与 Ping-Chung Leung. Healthy Aging. World Scientific Pub. Co., 2011.
警告：这些引文格式不一定是100％准确.