Cita APA (7a ed.)

Marks, D., & Yardley, L. (2004). Research methods for clinical and health psychology. SAGE.

Cita Chicago Style (17a ed.)

Marks, David, y Lucy Yardley. Research Methods for Clinical and Health Psychology. London ; Thousand Oaks, CA: SAGE, 2004.

Cita MLA (8a ed.)

Marks, David, y Lucy Yardley. Research Methods for Clinical and Health Psychology. SAGE, 2004.