(1981). Geologic map of the Mount Richthofen quadrangle and the western part of the Fall River pass quadrangle, Grand and Jackson counties, Colorado. U.S. Geological Survey.
Chicago-Zitierstil (17. Ausg.)Geologic Map of the Mount Richthofen Quadrangle and the Western Part of the Fall River Pass Quadrangle, Grand and Jackson Counties, Colorado. Reston, VA: U.S. Geological Survey, 1981.
MLA-Zitierstil (9. Ausg.)Geologic Map of the Mount Richthofen Quadrangle and the Western Part of the Fall River Pass Quadrangle, Grand and Jackson Counties, Colorado. U.S. Geological Survey, 1981.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.