Lua APA (7ú heag.)

Pawson, R., & Metzler, K. (2013). The science of evaluation: A realist manifesto. SAGE.

Lua i Stíl Chicago (17ú heag.)

Pawson, Ray, agus Katie Metzler. The Science of Evaluation: A Realist Manifesto. Los Angeles: SAGE, 2013.

Lua MLA (9ú heag.)

Pawson, Ray, agus Katie Metzler. The Science of Evaluation: A Realist Manifesto. SAGE, 2013.

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