Cita APA

Álvarez Martínez, G., Villalobos Ulate, N., & Valenzuela Arce, N. (2009). The Challenge Approach: An Innovative Teaching and Learning Pathway. Escuela de Lenguas Modernas, Universidad de Costa Rica.

Citación estilo Chicago

Álvarez Martínez, Gustavo, Nuria Villalobos Ulate, y Nandayure Valenzuela Arce. The Challenge Approach: An Innovative Teaching and Learning Pathway. Escuela de Lenguas Modernas, Universidad de Costa Rica, 2009.

Cita MLA

Álvarez Martínez, Gustavo, Nuria Villalobos Ulate, y Nandayure Valenzuela Arce. The Challenge Approach: An Innovative Teaching and Learning Pathway. Escuela de Lenguas Modernas, Universidad de Costa Rica, 2009.