Gaya APA

McDowell, I. (2006). Measuring Health : A Guide to Rating Scales, and Questionnaires 3rd Ed. (3rd Ed.). New York: Oxford University Press.

Gaya MLA

McDowell, Ian. "Measuring Health : A Guide to Rating Scales, and Questionnaires 3rd Ed.". 3rd Ed. New York: Oxford University Press, 2006. Text.