GALL, M. D. (1981). Handbook for evaluating and selecting curriculum materials. Allyn and Bacon.
Lua i Stíl Chicago (17ú heag.)GALL, Meredith Damien. Handbook for Evaluating and Selecting Curriculum Materials. Boston: Allyn and Bacon, 1981.
Lua MLA (9ú heag.)GALL, Meredith Damien. Handbook for Evaluating and Selecting Curriculum Materials. Allyn and Bacon, 1981.
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