APA-referens (7:e uppl.)
Piper, J. (2001). What's the difference?: Manhood and womanhood defined according to the Bible. Crossway Books.
Chicago-referens (17:e uppl.)
Piper, John. What's the Difference?: Manhood and Womanhood Defined According to the Bible. Wheaton, Ill.: Crossway Books, 2001.
MLA-referens (9:e uppl.)
Piper, John. What's the Difference?: Manhood and Womanhood Defined According to the Bible. Crossway Books, 2001.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.