Sims, P. K. (1963). Economic geology of the Central City District, Gilpin County, Colorado. U.S. Govt. Print. Off.
Chicago Style (17th ed.) CitationSims, P. K. Economic Geology of the Central City District, Gilpin County, Colorado. Washington: U.S. Govt. Print. Off, 1963.
MLA (9th ed.) CitationSims, P. K. Economic Geology of the Central City District, Gilpin County, Colorado. U.S. Govt. Print. Off, 1963.
Warning: These citations may not always be 100% accurate.