Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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