APA-viite

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

Chicago-tyylinen lähdeviittaus

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

MLA-viite

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

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