Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.