APA (7th ed.) Citation

(1975). Map showing outstanding natural and historic landmarks in the Boulder-Fort Collins-Greeley area, Front Range urban corridor, Colorado. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Map Showing Outstanding Natural and Historic Landmarks in the Boulder-Fort Collins-Greeley Area, Front Range Urban Corridor, Colorado. Washington, D.C: U.S. Geological Survey, 1975.

MLA (9th ed.) Citation

Map Showing Outstanding Natural and Historic Landmarks in the Boulder-Fort Collins-Greeley Area, Front Range Urban Corridor, Colorado. U.S. Geological Survey, 1975.