Creswell, J. W. (2014). Research design: International student edition : qualitative, quantitative and mixed methods approaches. Sage.
Chicago-referens (17:e uppl.)Creswell, John W. Research Design: International Student Edition : Qualitative, Quantitative and Mixed Methods Approaches. Sage, 2014.
MLA-referens (8:e uppl.)Creswell, John W. Research Design: International Student Edition : Qualitative, Quantitative and Mixed Methods Approaches. Sage, 2014.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.