Cita APA (7a ed.)

Creswell, J. W. (2009). Research design: Qualitative, Quantitative, and Mixed Methods Approaches. SAGE Publications.

Cita Chicago Style (17a ed.)

Creswell, John W. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. California, Estados Unidos: SAGE Publications, 2009.

Cita MLA (9a ed.)

Creswell, John W. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. SAGE Publications, 2009.