Johnson, D. W. (2009). Reaching out: Interpersonal effectiveness and self-actualization (10th ed.). Pearson.
Lua i Stíl Chicago (17ú heag.)Johnson, David W. Reaching Out: Interpersonal Effectiveness and Self-actualization. 10th ed. Upper Saddle River, N.J: Pearson, 2009.
Lua MLA (9ú heag.)Johnson, David W. Reaching Out: Interpersonal Effectiveness and Self-actualization. 10th ed. Pearson, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.