Citazione Stile APA (7a Edizione)

Johnson, D. W. (1993). Reaching out: Interpersonal effectiveness and ... (5th.ed.). Allyn and Bacon.

Citazione stile Chigago Style (17a edizione)

Johnson, David W. Reaching Out: Interpersonal Effectiveness and ... 5th.ed. Boston: Allyn and Bacon, 1993.

Citatione MLA (9a ed.)

Johnson, David W. Reaching Out: Interpersonal Effectiveness and ... 5th.ed. Allyn and Bacon, 1993.