Creswell, J. W. (2014). Research design: Qualitative, quantitative, and mixed methods approaches (4th ed.). Sage Publications.
Цитирование в стиле Чикаго (17-е изд.)Creswell, John W. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. 4th ed. Los Angeles, CA: Sage Publications, 2014.
Цитирование MLA (9-е изд.)Creswell, John W. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. 4th ed. Sage Publications, 2014.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.