Betts, R. B. (1985). In search of York: The slave who went to the Pacific with Lewis and Clark. Colorado Associated University Press.
Chicago Style (17th ed.) CitationBetts, Robert B. In Search of York: The Slave Who Went to the Pacific with Lewis and Clark. Boulder, Colo.: Colorado Associated University Press, 1985.
MLA (8th ed.) CitationBetts, Robert B. In Search of York: The Slave Who Went to the Pacific with Lewis and Clark. Colorado Associated University Press, 1985.
Warning: These citations may not always be 100% accurate.