Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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