Cita APA

Clarke, A., & Dawson, R. (1999). Evaluation research: An introduction to principles, methods, and practice. London ; Thousand Oaks, Calif.: SAGE.

Citación estilo Chicago

Clarke, Alan, and Ruth Dawson. Evaluation Research: An Introduction to Principles, Methods, and Practice. London ; Thousand Oaks, Calif.: SAGE, 1999.

Cita MLA

Clarke, Alan, and Ruth Dawson. Evaluation Research: An Introduction to Principles, Methods, and Practice. London ; Thousand Oaks, Calif.: SAGE, 1999.