Παραπομπή APA

Alvarado, G. E., & Vega, A. E. (2011). The cervantes lava flow geomorfology, irazú volcano (costa rica): Description of the central america`s greater lava flow field.

Παραπομπή Chicago Style

Alvarado, Guillermo E., και Ana E. Vega. The Cervantes Lava Flow Geomorfology, Irazú Volcano (costa Rica): Description of the Central America`s Greater Lava Flow Field. 2011.

Παραπομπή MLA

Alvarado, Guillermo E., και Ana E. Vega. The Cervantes Lava Flow Geomorfology, Irazú Volcano (costa Rica): Description of the Central America`s Greater Lava Flow Field. 2011.

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