Steffen, J. O. (1977). William Clark: Jeffersonian man on the frontier. University of Oklahoma Press.
Chicago Style (17th ed.) CitationSteffen, Jerome O. William Clark: Jeffersonian Man on the Frontier. Norman: University of Oklahoma Press, 1977.
MLA引文Steffen, Jerome O. William Clark: Jeffersonian Man on the Frontier. University of Oklahoma Press, 1977.
警告:這些引文格式不一定是100%准確.