Spaulding, C. L. (1992). Motivation in the classroom. New York [etc.]: McGraw-Hill.
Citación estilo ChicagoSpaulding, Cheryl L. Motivation in the Classroom. New York [etc.]: McGraw-Hill, 1992.
Cita MLASpaulding, Cheryl L. Motivation in the Classroom. New York [etc.]: McGraw-Hill, 1992.
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