Cita APA

Patton, M. Q., & Patton, M. Q. (1990). Qualitative evaluation and research methods (2. edition.). London, Sydney: SAGE.

Citación estilo Chicago

Patton, Michael Quinn, y Michael Quinn Patton. Qualitative Evaluation and Research Methods. 2. edition. London, Sydney: SAGE, 1990.

Cita MLA

Patton, Michael Quinn, y Michael Quinn Patton. Qualitative Evaluation and Research Methods. 2. edition. London, Sydney: SAGE, 1990.