Style de citation APA

John W. Creswell. (2009). Research design: Qualitative, quantitative, and mixed method approaches. SagePublications.

Style de citation Chicago

John W. Creswell. Research Design: Qualitative, Quantitative, and Mixed Method Approaches. New Delhi: SagePublications, 2009.

Style de citation MLA

John W. Creswell. Research Design: Qualitative, Quantitative, and Mixed Method Approaches. SagePublications, 2009.

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