TY  - BOOK
AU  - Gilbert,Bil
ED  - Time-Life Books.
TI  - The trailblazers,
AV  - F592 .T55 1973
U1  - 917.8/04B 
PY  - 1973///]
CY  - New York
PB  - Time-Life Books
KW  - West (U.S.)
KW  - Discovery and exploration
N1  - Bibliography: p. 232-233
UR  - http://www.archive.org/details/trailblazers00time
UR  - http://www.openlibrary.org/books/OL5429877M
ER  -