Layer, P. W. (2009). El Chichón volcanic complex, Chiapas, México: Stages of evolution based on field mapping and 40Ar/39Ar geochronology. Universidad Nacional Autónoma de México.
Citazione stile Chigago Style (17a edizione)Layer, P. W. El Chichón Volcanic Complex, Chiapas, México: Stages of Evolution Based on Field Mapping and 40Ar/39Ar Geochronology. Universidad Nacional Autónoma de México, 2009.
Citatione MLA (9a ed.)Layer, P. W. El Chichón Volcanic Complex, Chiapas, México: Stages of Evolution Based on Field Mapping and 40Ar/39Ar Geochronology. Universidad Nacional Autónoma de México, 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.