Creswell, J. W. Educational research: Planning, conducting, and evaluating quantitative and qualitative.
Čikaški stil citiranja (17. izdanje)Creswell, J. W. Educational Research: Planning, Conducting, and Evaluating Quantitative and Qualitative.
MLA način citiranja (8. izdanje)Creswell, J. W. Educational Research: Planning, Conducting, and Evaluating Quantitative and Qualitative.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.