McDermott, R. J., & Sarvela, P. D. (1999). Health education evaluation and measurement: A practitioner's perspective (2nd ed.). WCB/McGraw-Hill.
Cytowanie według stylu Chicago (wyd. 17)McDermott, Robert J., i Paul D. Sarvela. Health Education Evaluation and Measurement: A Practitioner's Perspective. 2nd ed. [Dubuque, IA]: WCB/McGraw-Hill, 1999.
Cytowanie według stylu MLA (wyd. 9)McDermott, Robert J., i Paul D. Sarvela. Health Education Evaluation and Measurement: A Practitioner's Perspective. 2nd ed. WCB/McGraw-Hill, 1999.