APA (7th ed.) Zitazioa

(1980). Group counseling for personal mastery: Everything you need to know to lead any group in any setting / by Wayne W. Dyer and John Vriend.

Chicago Style (17th ed.) Zitazioa

Group Counseling for Personal Mastery: Everything You Need to Know to Lead Any Group in Any Setting / by Wayne W. Dyer and John Vriend. 1980.

MLA (9th ed.) Zitazioa

Group Counseling for Personal Mastery: Everything You Need to Know to Lead Any Group in Any Setting / by Wayne W. Dyer and John Vriend. 1980.