Lua APA (7ú heag.)
Linfield, K. J., & Posavac, E. J. (2019). Program evaluation: Methods and case studies (9th ed.). Routledge.
Lua i Stíl Chicago (17ú heag.)
Linfield, Kenneth J., agus Emil J. Posavac. Program Evaluation: Methods and Case Studies. 9th ed. London: Routledge, 2019.
Lua MLA (9ú heag.)
Linfield, Kenneth J., agus Emil J. Posavac. Program Evaluation: Methods and Case Studies. 9th ed. Routledge, 2019.
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