Gable, R. K. (1986). Instrument development in the affective domain. Kluwer-Nijhoff.
Lua i Stíl Chicago (17ú heag.)Gable, Robert K. Instrument Development in the Affective Domain. Boston: Kluwer-Nijhoff, 1986.
Lua MLA (9ú heag.)Gable, Robert K. Instrument Development in the Affective Domain. Kluwer-Nijhoff, 1986.
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