Creswell, J. W., & Creswell, J. D. (2018). Research design: Qualitative, quantitative, and mixed methods approaches (Fifth edition.). SAGE.
Цитирование в стиле Чикаго (17-е изд.)Creswell, John W., и J. David Creswell. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. Fifth edition. Los Angeles: SAGE, 2018.
Цитирование MLA (8-е изд.)Creswell, John W., и J. David Creswell. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. Fifth edition. SAGE, 2018.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.