APA Zitierstil

Barker, M., Langdridge, D., & Vossler, A. (2010). Understanding counselling and psychotherapy. SAGE ; In association with The Open University.

Chicago Zitierstil

Barker, Meg, Darren Langdridge, und Andreas Vossler. Understanding Counselling and Psychotherapy. London ; Thousand Oaks, Calif. : Milton Keynes [England]: SAGE ; In association with The Open University, 2010.

MLA Zitierstil

Barker, Meg, et al. Understanding Counselling and Psychotherapy. SAGE ; In association with The Open University, 2010.