Cita APA (7a ed.)

Acuña Somarribas, D. y. . V. V. (1999). Oral activities used in ten third grade classrooms in public schools of the metropolitan area in Costa Rica. Universidad de CostaRica, Escuela de Lenguas Modernas.

Cita Chicago Style (17a ed.)

Acuña Somarribas, Diego y Vargas Vargas. Oral Activities Used in Ten Third Grade Classrooms in Public Schools of the Metropolitan Area in Costa Rica. San José, Costa Rica: Universidad de CostaRica, Escuela de Lenguas Modernas, 1999.

Cita MLA (9a ed.)

Acuña Somarribas, Diego y Vargas Vargas. Oral Activities Used in Ten Third Grade Classrooms in Public Schools of the Metropolitan Area in Costa Rica. Universidad de CostaRica, Escuela de Lenguas Modernas, 1999.