APA Citatie

Creswell, J. W. (2014). Research design: Qualitative, quantitative, and mixed methods approaches (3rd ed.). Sage Publications.

Chicago Style citaat

Creswell, John W. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. 3rd ed. New Delhi: Sage Publications, 2014.

MLA citatie

Creswell, John W. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. 3rd ed. Sage Publications, 2014.