Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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