Παραπομπή σε μορφή APA (7η εκδ.)

Creswell, J. W. (2014). Research design: Qualitative, quantitative, and mixed methods approaches (4th ed.). SAGE.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Creswell, John W. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. 4th ed. Thousand Oaks, CA ; London: SAGE, 2014.

Παραπομπή σε μορφή MLA (8th εκδ.)

Creswell, John W. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. 4th ed. SAGE, 2014.