Cita APA

Alvarado, G. E., Mora, M. M., & Ulloa, A. (2011). The "ashfall" coming from Irazú volcano (Costa Rica) on december 8th 1994: A phreatic explosion?

Chicago Style Citation

Alvarado, Guillermo E., Mauricio M. Mora, i Andrés Ulloa. The "ashfall" Coming From Irazú Volcano (Costa Rica) On December 8th 1994: A Phreatic Explosion? 2011.

Cita MLA

Alvarado, Guillermo E., Mauricio M. Mora, i Andrés Ulloa. The "ashfall" Coming From Irazú Volcano (Costa Rica) On December 8th 1994: A Phreatic Explosion? 2011.