APA-Zitierstil (7. Ausg.)

Marshall, C. H. (1959). Photogeologic map of the Norwood-1 quadrangle Montrose and Ouray Counties, Colorado. U.S. Geological Survey.

Chicago-Zitierstil (17. Ausg.)

Marshall, C. H. Photogeologic Map of the Norwood-1 Quadrangle Montrose and Ouray Counties, Colorado. Washington, D.C: U.S. Geological Survey, 1959.

MLA-Zitierstil (9. Ausg.)

Marshall, C. H. Photogeologic Map of the Norwood-1 Quadrangle Montrose and Ouray Counties, Colorado. U.S. Geological Survey, 1959.