APA (7th ed.) Citation

Barrett-Lennard, G. (1998). Carl Roger's helping system : journey and substance / Godfrey T. Barrett-Lennard: Journey and substance. SAGE.

Chicago Style (17th ed.) Citation

Barrett-Lennard, Godfrey. Carl Roger's Helping System : Journey and Substance / Godfrey T. Barrett-Lennard: Journey and Substance. London: SAGE, 1998.

MLA (9th ed.) Citation

Barrett-Lennard, Godfrey. Carl Roger's Helping System : Journey and Substance / Godfrey T. Barrett-Lennard: Journey and Substance. SAGE, 1998.

Warning: These citations may not always be 100% accurate.