Creswell, J. W. (2019). Educational research: Planning, conducting, and evaluating quantitative and qualitative research. Pearson.
Chicago-стиль цитированияCreswell, John W. Educational Research: Planning, Conducting, and Evaluating Quantitative and Qualitative Research. Pearson, 2019.
MLA-цитированиеCreswell, John W. Educational Research: Planning, Conducting, and Evaluating Quantitative and Qualitative Research. Pearson, 2019.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.