Lua APA (7ú heag.)

Creswell, J. W. (1994). Research design: Qualitative & quantitative approaches. Sage.

Lua i Stíl Chicago (17ú heag.)

Creswell, John W. Research Design: Qualitative & Quantitative Approaches. Thousand Oaks, California: Sage, 1994.

Lua MLA (9ú heag.)

Creswell, John W. Research Design: Qualitative & Quantitative Approaches. Sage, 1994.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.