Creswell, J. W. (2007). Qualitative inquiry and research design: Choosing among five approaches (Segunda edición.). Sage Publications.
Lua i Stíl Chicago (17ú heag.)Creswell, John W. Qualitative Inquiry and Research Design: Choosing Among Five Approaches. Segunda edición. California: Sage Publications, 2007.
Lua MLA (8ú heag.)Creswell, John W. Qualitative Inquiry and Research Design: Choosing Among Five Approaches. Segunda edición. Sage Publications, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.