ebrary, Inc, & Wu-Wong, J. R. (2012). Why does vitamin D matter? Bentham eBooks.
芝加哥风格引文ebrary, Inc, 与 J. Ruth Wu-Wong. Why Does Vitamin D Matter? [Dubai, United Arab Emirates]: Bentham eBooks, 2012.
MLA引文ebrary, Inc, 与 J. Ruth Wu-Wong. Why Does Vitamin D Matter? Bentham eBooks, 2012.
警告：这些引文格式不一定是100％准确.