APA (7th ed.) Citation

Bastin, E. S., & Hill, J. M. (1917). Economic Geology of Gilpin County and adjacent parts of Clear Creek and Boulder Counties, Colorado. Government Printing Office.

Chicago Style (17th ed.) Citation

Bastin, Edson S., and James M. Hill. Economic Geology of Gilpin County and Adjacent Parts of Clear Creek and Boulder Counties, Colorado. Washington: Government Printing Office, 1917.

MLA (9th ed.) Citation

Bastin, Edson S., and James M. Hill. Economic Geology of Gilpin County and Adjacent Parts of Clear Creek and Boulder Counties, Colorado. Government Printing Office, 1917.