APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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