APA (7 ম সংস্করণ) উদ্ধৃতি

Creswell, J. W. (2003). Research design: Qualitative, quantitative, and mixed methods approaches (2nd ed.). Sage.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Creswell, John W. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. 2nd ed. Thousand Oaks, Calif: Sage, 2003.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Creswell, John W. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. 2nd ed. Sage, 2003.