TY  - BOOK
AU  - De Voto, Bernard Augustine,
AU  - Raisz, E.
TI  - The course of empire
U1  - 973.1 
PY  - 1952///
CY  - Boston
PB  - Houghton Mifflin
KW  - Indians of North America
KW  - History
KW  - United States
KW  - Territorial expansion
KW  - North America
KW  - Discription & exploration
N1  - Includes bibliographical references : p.561-631
ER  -