00641cam a2200193 4500 509627867 TxAuBib 20210826120000.0 030507s2000||||||||||||||||||||||||eng|u 9780870816185 0870816187 IMchF TxAuBib Betts, Robert B. In search of York : the slave who went to the Pacific with Lewis and Clark / Robert B. Betts. [United States : University of Colorado Press, 2000. 204 p. : ill. 20210826. Lewis and Clark Expedition, 1804-1806.