APA (7th ed.) Citation

Dyer, W. W., & Vriend, J. (1980). Group counseling for personal mastery: Everything you need to know to lead any group in any setting. Sovereign Books.

Chicago Style (17th ed.) Citation

Dyer, Wayne W., and John Vriend. Group Counseling for Personal Mastery: Everything You Need to Know to Lead Any Group in Any Setting. New York: Sovereign Books, 1980.

MLA (9th ed.) Citation

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