APA (7th ed.) Zitazioa

Smalley, G., & Trent, J. (1990). The two sides of love: Using personality strengths to greatly improve your relationships. Tyndale.

Chicago Style (17th ed.) Zitazioa

Smalley, Gary, eta John Trent. The Two Sides of Love: Using Personality Strengths to Greatly Improve Your Relationships. Wheaton: Tyndale, 1990.

MLA (9th ed.) Zitazioa

Smalley, Gary, eta John Trent. The Two Sides of Love: Using Personality Strengths to Greatly Improve Your Relationships. Tyndale, 1990.