Gaya APA

B, J, M, L. (2002). A Seismic Model for The Volcanic Activity of Nevado del Ruiz Volcano, Colombia . Colombia: Department of Geophysics Graduate School of Science Kyoto University.

Gaya MLA

B, John, Makario, Londono. "A Seismic Model for The Volcanic Activity of Nevado del Ruiz Volcano, Colombia". Colombia: Department of Geophysics Graduate School of Science Kyoto University, 2002. Text.