APA (7th ed.) Citation

Knight, J. F. (1994). So you're a teenager: Vital facts for boys (4th ed. rev.). Signs.

Chicago Style (17th ed.) Citation

Knight, John F. So You're a Teenager: Vital Facts for Boys. 4th ed. rev. Warburton, Vic.: Signs, 1994.

MLA (9th ed.) Citation

Knight, John F. So You're a Teenager: Vital Facts for Boys. 4th ed. rev. Signs, 1994.