Cita APA

Barrett-Lennard, G. T. (1998). Carl Rogers' helping system: Journey and substance. Los Angeles ; London: SAGE Publications.

Citación estilo Chicago

Barrett-Lennard, Godfrey T. Carl Rogers' Helping System: Journey and Substance. Los Angeles ; London: SAGE Publications, 1998.

Cita MLA

Barrett-Lennard, Godfrey T. Carl Rogers' Helping System: Journey and Substance. Los Angeles ; London: SAGE Publications, 1998.

Precaución: Estas citas no son 100% exactas.