Cita APA

Acuña Somarribas, D., & Vargas Vargas, F. (1999). Oral activities used in ten third grade classrooms in public schools of the Metropolitan Area in Costa Rica. San José, C.R.

Citación estilo Chicago

Acuña Somarribas, Diego, y Francisco Vargas Vargas. Oral Activities Used in Ten Third Grade Classrooms in Public Schools of the Metropolitan Area in Costa Rica. San José, C.R, 1999.

Cita MLA

Acuña Somarribas, Diego, y Francisco Vargas Vargas. Oral Activities Used in Ten Third Grade Classrooms in Public Schools of the Metropolitan Area in Costa Rica. San José, C.R, 1999.