Cita APA (7th ed.)
Thorne, B. (1992). Carl Rogers. Sage Publications.
Cita Chicago (17th ed.)
Thorne, Brian. Carl Rogers. London ; Newbury Park, Calif.: Sage Publications, 1992.
Cita MLA (9th ed.)
Thorne, Brian. Carl Rogers. Sage Publications, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.