00559nam a2200181Ia 450000500170000000800410001704000190005804100120007708200130008910000250010224500840012725000120021126000380022330000280026150400500028965000280033985000100036720230711112336.0131103s9999    xx            000 0 und d  aLoreto College  aEnglish  a973bBIL  aBillington,Ray Allen  aWestward Expansionb a history of the American Frontier  cRay Allen Billington  a3rd ed.  aNew YorkbThe Macmillan Co.c1967  axvii,633 p.b ill.,maps  aIncludes bibliographical references and index  aUnited States - History  aLCLIB