McBurney, D., & White, T. L. (2007). Research methods (7th ed. (International student ed.).). Thomson/Wadsworth.
Lua i Stíl Chicago (17ú heag.)McBurney, Donald, agus Theresa L. White. Research Methods. 7th ed. (International student ed.). Belmont, CA: Thomson/Wadsworth, 2007.
Lua MLA (8ú heag.)McBurney, Donald, agus Theresa L. White. Research Methods. 7th ed. (International student ed.). Thomson/Wadsworth, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.