Citace podle APA
Creswell, J. W., & Creswell, J. D. Research design: Qualitative, quantitative, and mixed methods approaches (Fifth edition.). x.
Styl ChicagoCreswell, John W., and J. David Creswell. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. Fifth edition. x.
Citace podle MLACreswell, John W., and J. David Creswell. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. Fifth edition. x.
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