APA-viite (7. p.)

Creswell, J. W., & Creswell, J. D. (2018). Research design: Qualitative, quantitative, and mixed methods approaches (Fifth edition.). SAGE.

Chicago-viite (17. p.)

Creswell, John W., ja J. David Creswell. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. Fifth edition. Los Angeles: SAGE, 2018.

MLA-viite (8. p.)

Creswell, John W., ja J. David Creswell. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. Fifth edition. SAGE, 2018.