APA (7e ed.) Bronvermelding

Creswell, J. W. (1994). Research design: Qualitative & quantitative approaches. Sage Publications.

Chicago (17e ed.) Bronvermelding

Creswell, John W. Research Design: Qualitative & Quantitative Approaches. Thousand Oaks, Calif.: Sage Publications, 1994.

MLA (8e ed.) Bronvermelding

Creswell, John W. Research Design: Qualitative & Quantitative Approaches. Sage Publications, 1994.

Let op: Deze citaties zijn niet altijd 100% accuraat.