Dyfyniad APA

Spampinato, L., Salerno, G. G., Martin, R. S., Sawyer, G. M., Oppenheimer, C., Ilyinskaya, E., & Ramírez, C. (2009). Thermal and geochemical signature of Poás Volcano, Costa Rica (MARCH 2009).

Dyfyniad Arddull Chicago

Spampinato, Letizia, Giuseppe G. Salerno, Robert S. Martin, Georgina M. Sawyer, Clive Oppenheimer, Evgenia Ilyinskaya, y Carlos Ramírez. Thermal and Geochemical Signature of Poás Volcano, Costa Rica (MARCH 2009). 2009.

Dyfyniad MLA

Spampinato, Letizia, et al. Thermal and Geochemical Signature of Poás Volcano, Costa Rica (MARCH 2009). 2009.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.