Estados Unidos. Geological Survey, & Estados Unidos. Geological Survey. (1970). Maps showing the distribution of scandium, strotium, titanium, vanadium,yttrium, and zirconium in superficial marine sediments on the continentalshelf and slope of the Northern Gulf of Mexico. Washington: The Survey.
Citación estilo ChicagoEstados Unidos. Geological Survey, y Estados Unidos. Geological Survey. Maps Showing the Distribution of Scandium, Strotium, Titanium, Vanadium,yttrium, and Zirconium in Superficial Marine Sediments On the Continentalshelf and Slope of the Northern Gulf of Mexico. Washington: The Survey, 1970.
Cita MLAEstados Unidos. Geological Survey, y Estados Unidos. Geological Survey. Maps Showing the Distribution of Scandium, Strotium, Titanium, Vanadium,yttrium, and Zirconium in Superficial Marine Sediments On the Continentalshelf and Slope of the Northern Gulf of Mexico. Washington: The Survey, 1970.