Cita APA (7th ed.)

Patton, M. Q. (2002). Qualitative research and evaluation methods (3a. ed.). Sage Publications.

Cita Chicago (17th ed.)

Patton, Michael Quinn. Qualitative Research and Evaluation Methods. 3a. ed. Thousand Oaks: Sage Publications, 2002.

Cita MLA (9th ed.)

Patton, Michael Quinn. Qualitative Research and Evaluation Methods. 3a. ed. Sage Publications, 2002.