(1972). Maps showing extent and thickness of coal beds and amount of overburden on coal beds in the Salina quadrangle, Utah. U.S. Geological Survey.
Chicago-Zitierstil (17. Ausg.)Maps Showing Extent and Thickness of Coal Beds and Amount of Overburden on Coal Beds in the Salina Quadrangle, Utah. Washington, D.C: U.S. Geological Survey, 1972.
MLA-Zitierstil (9. Ausg.)Maps Showing Extent and Thickness of Coal Beds and Amount of Overburden on Coal Beds in the Salina Quadrangle, Utah. U.S. Geological Survey, 1972.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.