TY  - GEN
AU  - Webster, Christine
TI  - The Lewis and Clark expedition: : cornerstones of freedom 
SN  - 0516226789
U1  - 973W377le 
PY  - 2003///
CY  - New York: 
PB  - Children's Press, Scholastic
KW  - Estados  Unidos
KW  - Historia
ER  -