Cita APA

Creswell, J. W. (2015). Research design: Qualitative, quantitative, and mixed methods approaches. Sage.

Chicago Style Citation

Creswell, John W. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. Sage, 2015.

Cita MLA

Creswell, John W. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. Sage, 2015.