Cita APA (7th ed.)
Tudor, K. (1999). Group counselling. Sage Publications.
Cita Chicago (17th ed.)
Tudor, Keith. Group Counselling. London ; Thousand Oaks, CA: Sage Publications, 1999.
Cita MLA (9th ed.)
Tudor, Keith. Group Counselling. Sage Publications, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.