APA način citiranja

Álvarez Martínez, G., Villalobos Ulate, N., & Valenzuela Arce, N. (2009). The Challenge Approach: An Innovative Teaching and Learning Pathway.

Čikaški stil citiranja

Álvarez Martínez, Gustavo, Nuria Villalobos Ulate, i Nandayure Valenzuela Arce. The Challenge Approach: An Innovative Teaching and Learning Pathway. 2009.

MLA način citiranja

Álvarez Martínez, Gustavo, Nuria Villalobos Ulate, i Nandayure Valenzuela Arce. The Challenge Approach: An Innovative Teaching and Learning Pathway. 2009.