TY  - MPI
TI  - Pacific Northwest
T2  - The making of America
VL  - 12
PY  - 1986///
CY  - Washington (DC)
PB  - National Geographic Society
KW  - Cartografia
KW  - 912=111
PB  - National Geographic Society
PP  - Washington (DC)
SP  - 1 mapa color.
ER  -