Παραπομπή σε μορφή APA (7η εκδ.)

Creswell, J. W. (2009). Research design: Qualitative, quantitative, and mixed methods approaches (3rd ed.). SAGE Pub.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Creswell, John W. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. 3rd ed. Los Angeles: SAGE Pub, 2009.

Παραπομπή σε μορφή MLA (9th εκδ.)

Creswell, John W. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. 3rd ed. SAGE Pub, 2009.