McDermott, R. J., & Sarvela, P. D. (1999). Health education evaluation and measurement: A practitioner's perspective (2nd ed.). WCB/McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)McDermott, Robert J., agus Paul D. Sarvela. Health Education Evaluation and Measurement: A Practitioner's Perspective. 2nd ed. [Dubuque, IA]: WCB/McGraw-Hill, 1999.
Lua MLA (9ú heag.)McDermott, Robert J., agus Paul D. Sarvela. Health Education Evaluation and Measurement: A Practitioner's Perspective. 2nd ed. WCB/McGraw-Hill, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.