APA (7th ed.) Citation

Lindsey, D. A. (1984). Geologic map of the Horn Peak quadrangle, Custer and Saguache Counties, Colorado. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Lindsey, David A. Geologic Map of the Horn Peak Quadrangle, Custer and Saguache Counties, Colorado. Reston, Va.: U.S. Geological Survey, 1984.

MLA (9th ed.) Citation

Lindsey, David A. Geologic Map of the Horn Peak Quadrangle, Custer and Saguache Counties, Colorado. U.S. Geological Survey, 1984.