Cita APA (7a ed.)

Witzel, A., & Reiter, H. (2012). The problem-centred interview: Principles and practice. SAGE.

Cita Chicago Style (17a ed.)

Witzel, Andreas, y Herwig Reiter. The Problem-centred Interview: Principles and Practice. Los Angeles: SAGE, 2012.

Cita MLA (9a ed.)

Witzel, Andreas, y Herwig Reiter. The Problem-centred Interview: Principles and Practice. SAGE, 2012.