Blaxter, L., Hughes, C., & Tight, M. (2010). How to research (3rd ed.). Open University Press.
Lua i Stíl Chicago (17ú heag.)Blaxter, Loraine, Christina Hughes, agus Malcolm Tight. How to Research. 3rd ed. Berkshire, England ; New York: Open University Press, 2010.
Lua MLA (8ú heag.)Blaxter, Loraine, et al. How to Research. 3rd ed. Open University Press, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.