APA引文

MacDonald, L. A. (2004). Learn to be an optimist.

Chicago Edition Citation

MacDonald, Lucy; Author. Learn to Be an Optimist. London, Duncan Baird Publishers, 2004.

MLA引文

MacDonald, Lucy; Author. Learn to Be an Optimist. 2004.

警告：這些引文格式不一定是100％准確.