Cita APA

Ramírez, R., Cordero, C., & Alvarado, G. E. (2011). Variations and characteristics in changes of the crater lake level of Irazú volcano (1965-2012), Costa Rica.

Citación estilo Chicago

Ramírez, Ronald, Cecilia Cordero, y Guillermo E. Alvarado. Variations and Characteristics in Changes of the Crater Lake Level of Irazú Volcano (1965-2012), Costa Rica. 2011.

Cita MLA

Ramírez, Ronald, Cecilia Cordero, y Guillermo E. Alvarado. Variations and Characteristics in Changes of the Crater Lake Level of Irazú Volcano (1965-2012), Costa Rica. 2011.