Cita APA (7a ed.)
Gall, M. D., & Ward, B. A. Critical Issues in Educational Psychology. Little, Brown and Company.
Cita estilo Chicago (17a ed.)
Gall, Mereduth D., y Beatrice A. Ward. Critical Issues in Educational Psychology. Boston, EUA: Little, Brown and Company.
Cita MLA (9a ed.)
Gall, Mereduth D., y Beatrice A. Ward. Critical Issues in Educational Psychology. Little, Brown and Company.
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