APA-viite (7. p.)

Creswell, J. W., & Creswell, J. D. (2023). Research design: Qualitative, quantitative, and mixed methods approaches (Sixth edition.). SAGE.

Chicago-viite (17. p.)

Creswell, John W., ja J. David Creswell. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. Sixth edition. Los Angeles: SAGE, 2023.

MLA-viite (9. p.)

Creswell, John W., ja J. David Creswell. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. Sixth edition. SAGE, 2023.