Keefer, W. R. (1972). Frontier, Cody, and Mesaverde Formations in the Wind River and southern Bighorn Basins, Wyoming. U.S. Govt. Print. Off.
Chicago Style (17th ed.) CitationKeefer, William R. Frontier, Cody, and Mesaverde Formations in the Wind River and Southern Bighorn Basins, Wyoming. Washington: U.S. Govt. Print. Off, 1972.
MLA (9th ed.) CitationKeefer, William R. Frontier, Cody, and Mesaverde Formations in the Wind River and Southern Bighorn Basins, Wyoming. U.S. Govt. Print. Off, 1972.
Warning: These citations may not always be 100% accurate.