APA (7e ed.) Bronvermelding

Johnson, D. W. (2009). Reaching out: Interpersonal effectiveness and self-actualization (10th ed.). Pearson.

Chicago (17e ed.) Bronvermelding

Johnson, David W. Reaching Out: Interpersonal Effectiveness and Self-actualization. 10th ed. Upper Saddle River, N.J: Pearson, 2009.

MLA (9e ed.) Bronvermelding

Johnson, David W. Reaching Out: Interpersonal Effectiveness and Self-actualization. 10th ed. Pearson, 2009.