McDowell,Ian Newell,Claire. (1996). Measuring Health: A guide to rating scales and questionnaires (2nd-ed.). Oxford University Press.
Lua i Stíl Chicago (17ú heag.)McDowell,Ian Newell,Claire. Measuring Health: A Guide to Rating Scales and Questionnaires. 2nd-ed. New York: Oxford University Press, 1996.
Lua MLA (8ú heag.)McDowell,Ian Newell,Claire. Measuring Health: A Guide to Rating Scales and Questionnaires. 2nd-ed. Oxford University Press, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.