TY  - BOOK
ED  - National Geographic Society (U.S.).
TI  - The wonders of the world
SN  - 0792272005 (reg.)
AV  - R GB 406 W872 1998
U1  - 031.02 
PY  - 1998///
CY  - Washington, D.C.
PB  - National Geographic Society
KW  - Landforms
KW  - Natural monuments
KW  - Seven Wonders of the World
KW  - Monumentos naturales
KW  - Curiosidades
KW  - Siete maravillas del mundo
ER  -