Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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