APA (7th ed.) Citation

Ohlsen, M. M., & Joseph, H. (1970). Group counseling. Holt, Rinehart and Winston.

Chicago Style (17th ed.) Citation

Ohlsen, Merle M., and Harry Joseph. Group Counseling. New York [etc.]: Holt, Rinehart and Winston, 1970.

MLA (9th ed.) Citation

Ohlsen, Merle M., and Harry Joseph. Group Counseling. Holt, Rinehart and Winston, 1970.