APA (7e ed.) Bronvermelding

Evaluation Research Society, Cook, T. D., & Reichardt, C. S. (1979). Qualitative and quantitative methods in evaluation research. Sage Publications.

Chicago (17e ed.) Bronvermelding

Evaluation Research Society, Thomas D. Cook, en Charles S. Reichardt. Qualitative and Quantitative Methods in Evaluation Research. Beverly Hills, Calif: Sage Publications, 1979.

MLA (9e ed.) Bronvermelding

Evaluation Research Society, et al. Qualitative and Quantitative Methods in Evaluation Research. Sage Publications, 1979.