TY  - SER
AU  - Hillman,Martin
TI  - Bridging a continent
T2  - Aldus encyclopedia of discovery and exploration
SN  - 0490002277
AV  - F592 .H54 1971
PY  - 1971///
CY  - London
PB  - Aldus
KW  - Discoveries in geography
KW  - West (U.S.)
KW  - Discovery and exploration
KW  - Juvenile literature
ER  -