TY  - BOOK
AU  - Walker,Bryce S
AU  - Time-Life Books
TI  - The Great Divide
AV  - QH104.T583.G743 1973 
PY  - 1973///
CY  - Alexandria, Virginia
PB  - Time-Life Books
KW  - Natural history
KW  - Rocky Mountains
N1  - 4; Bibliography: pages 180; 2
ER  -