Creswell, J. W. (2021). Educational research: Planning, conducting, and evaluating quantitative and qualitative research (Sixth edition.). Pearson Education Limited.
Чикаго стиль цитування (17-те видання)Creswell, John W. Educational Research: Planning, Conducting, and Evaluating Quantitative and Qualitative Research. Sixth edition. Harlow, England: Pearson Education Limited, 2021.
Стиль цитування MLA (8-ме видання)Creswell, John W. Educational Research: Planning, Conducting, and Evaluating Quantitative and Qualitative Research. Sixth edition. Pearson Education Limited, 2021.
Попередження: стилі цитування не завжди правильні на всі 100%.