APA-viite (7. p.)
Piper, J. (2001). What's the difference?: Manhood and womanhood defined according to the Bible. Crossway Books.
Chicago-viite (17. p.)
Piper, John. What's the Difference?: Manhood and Womanhood Defined According to the Bible. Wheaton, Ill.: Crossway Books, 2001.
MLA-viite (9. p.)
Piper, John. What's the Difference?: Manhood and Womanhood Defined According to the Bible. Crossway Books, 2001.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.