Lua APA (7ú heag.)

Struening, E. L., & Guttentag, M. (1975). Handbook of evaluation research. Sage Publications.

Lua i Stíl Chicago (17ú heag.)

Struening, Elmer L., agus Marcia Guttentag. Handbook of Evaluation Research. Beverly Hills, Calif.: Sage Publications, 1975.

Lua MLA (8ú heag.)

Struening, Elmer L., agus Marcia Guttentag. Handbook of Evaluation Research. Sage Publications, 1975.

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