APA (7th ed.) Citation

Patton, M. Q. (1990). Qualitative evaluation and research methods (2nd ed.). Sage Publications.

Chicago Style (17th ed.) Citation

Patton, Michael Quinn. Qualitative Evaluation and Research Methods. 2nd ed. Newbury Park, Calif: Sage Publications, 1990.

MLA (9th ed.) Citation

Patton, Michael Quinn. Qualitative Evaluation and Research Methods. 2nd ed. Sage Publications, 1990.