Cita APA (7th ed.)

PATTON, M. Q. (1982). Qualitative evaluation methods. Sage Pub.

Cita Chicago (17th ed.)

PATTON, Michael Quinn. Qualitative Evaluation Methods. London: Sage Pub, 1982.

Cita MLA (9th ed.)

PATTON, Michael Quinn. Qualitative Evaluation Methods. Sage Pub, 1982.