Brinkerhoff, R. O. (1983). Program evaluation: A practitioner's guide for trainers and educators : design manual. Kluwer-Nijhoff Pub..
Lua i Stíl Chicago (17ú heag.)Brinkerhoff, Robert O. Program Evaluation: A Practitioner's Guide for Trainers and Educators : Design Manual. Boston: Kluwer-Nijhoff Pub., 1983.
Lua MLA (8ú heag.)Brinkerhoff, Robert O. Program Evaluation: A Practitioner's Guide for Trainers and Educators : Design Manual. Kluwer-Nijhoff Pub., 1983.
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