Scher, J. (1985). Pregnancy everything you need to know. penguin Books.
芝加哥风格引文Scher, Jonathan. Pregnancy Everything You Need to Know. Great Britain: penguin Books, 1985.
MLA引文Scher, Jonathan. Pregnancy Everything You Need to Know. penguin Books, 1985.
警告：这些引文格式不一定是100％准确.