Citazione APA

Creswell, J. W. (2014). Research design: Qualitative, quantitative, and mixed methods approaches (4th ed.). Sage Publications.

Stile di citazione Chicago

Creswell, John W. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. 4th ed. Los Angeles: Sage Publications, 2014.

Citazione MLA

Creswell, John W. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. 4th ed. Sage Publications, 2014.