APA (7th ed.) Citation

Bass, N. W., & Northrop, S. A. (1963). Geology of Glenwood Springs quadrangle and vicinity, northwestern Colorado. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Bass, N. Wood, and Stuart Alvord Northrop. Geology of Glenwood Springs Quadrangle and Vicinity, Northwestern Colorado. Washington, D.C.: United States Department of the Interior, Geological Survey, 1963.

MLA (9th ed.) Citation

Bass, N. Wood, and Stuart Alvord Northrop. Geology of Glenwood Springs Quadrangle and Vicinity, Northwestern Colorado. United States Department of the Interior, Geological Survey, 1963.