Medina Martínez, Francisco. “Global Volcanism 1975-1985 / L. Mc Clelland, T. Simkin, M. Summers, E. Nielsen, Th. C. Stein (editores)”. Geofisica Internacional 29, no. 2 (April 1, 1990): 119–120. Accessed July 23, 2024. http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1047.