00900pam a2200277 a 4500 635436 BD-DhUL 20201111143016.0 930715s1954 caua b 001 0 eng d 93029898 DLC DLC DLC BD-DhUL n-us--- n-usp-- E179.5 .A47733 1994 973 20 KEA Keyes, Nelson Beecher The American frontier : our unique heritage / Nelson Beecher Keyes New York : Hanover House, c1954. 306 p. : ill. ; 20 cm. Includes bibliographical references (p. 289-301) and index. Frontier thesis. Frontier and pioneer life United States. United States Territorial expansion. West (U.S.) History. 7 cbc orignew 1 ocip 19 y-gencatlg ddc BK 252280 252280 0 0 ddc 0 973_000000000000000_KEA 0 NFIC 384903 DUL DUL GEN 1958-11-02 general 973 KEA A2627 2020-11-11 2020-11-11 BK