Dyfyniad APA

Clarke,Alan, & Dawson,Ruth. (1999). Evaluation Research: An introduction to principles, methods and practice. Sage Publications.

Dyfyniad Arddull Chicago

Clarke,Alan, and Dawson,Ruth. Evaluation Research: An Introduction to Principles, Methods and Practice. London: Sage Publications, 1999.

Dyfyniad MLA

Clarke,Alan, and Dawson,Ruth. Evaluation Research: An Introduction to Principles, Methods and Practice. Sage Publications, 1999.

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