Parker, R. L., & Sharp, W. N. (1970). Mafic-ultramafic igneous rocks and associated carbonatites of the Gem Park Complex, Custer and Fremont Counties, Colorado. U.S. Govt. Print. Off.
Chicago Style (17th ed.) CitationParker, Raymond L., and William N. Sharp. Mafic-ultramafic Igneous Rocks and Associated Carbonatites of the Gem Park Complex, Custer and Fremont Counties, Colorado. Washington: U.S. Govt. Print. Off, 1970.
MLA (9th ed.) CitationParker, Raymond L., and William N. Sharp. Mafic-ultramafic Igneous Rocks and Associated Carbonatites of the Gem Park Complex, Custer and Fremont Counties, Colorado. U.S. Govt. Print. Off, 1970.
Warning: These citations may not always be 100% accurate.