ebrary, Inc. (2007). Nutrition and activity. Emerald Group Publishing.
Chicago Style (17th ed.) Citationebrary, Inc. Nutrition and Activity. Bradford, England: Emerald Group Publishing, 2007.
MLA引文ebrary, Inc. Nutrition and Activity. Emerald Group Publishing, 2007.
警告:這些引文格式不一定是100%准確.