Judson, S. (1953). Geology of the San Jon site, Esastern New Mexico by Sheldon Judson. Smithsonian Institution.
Cita Chicago Style (17a ed.)Judson, Sheldon. Geology of the San Jon Site, Esastern New Mexico by Sheldon Judson. Washington D.C: Smithsonian Institution, 1953.
Cita MLA (8a ed.)Judson, Sheldon. Geology of the San Jon Site, Esastern New Mexico by Sheldon Judson. Smithsonian Institution, 1953.
Precaución: Estas citas no son 100% exactas.