Cita APA

Ritchie, J., & Lewis, J. (2003). Qualitative research practice: A guide for social science students and researchers. Sage Publications.

Citación estilo Chicago

Ritchie, Jane,Ed, y Jane,Ed Lewis. Qualitative Research Practice: A Guide for Social Science Students and Researchers. London ; Thousand Oaks, Calif.: Sage Publications, 2003.

Cita MLA

Ritchie, Jane,Ed, y Jane,Ed Lewis. Qualitative Research Practice: A Guide for Social Science Students and Researchers. Sage Publications, 2003.