Cita APA (7th ed.)

Creswell, J. W., & Creswell, J. D. (2018). Research design: Qualitative, quantitative, and mixed methods approaches (5a. ed.). SAGE Publications.

Cita Chicago (17th ed.)

Creswell, John W., i J. David Creswell. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. 5a. ed. Londres: SAGE Publications, 2018.

Cita MLA (9th ed.)

Creswell, John W., i J. David Creswell. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. 5a. ed. SAGE Publications, 2018.