APA Zitierstil

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

Chicago Zitierstil

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

MLA Zitierstil

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

Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.