APA (7th ed.) Citation

Crosby, E. J. (1976). Map showing nonmetallic mineral resources (except fuels) in bedrock, Front Range Urban Corridor, Colorado. The Survey.

Chicago Style (17th ed.) Citation

Crosby, Eleanor J. Map Showing Nonmetallic Mineral Resources (except Fuels) in Bedrock, Front Range Urban Corridor, Colorado. Washington, D.C.: The Survey, 1976.

MLA (9th ed.) Citation

Crosby, Eleanor J. Map Showing Nonmetallic Mineral Resources (except Fuels) in Bedrock, Front Range Urban Corridor, Colorado. The Survey, 1976.