TY  - BOOK
ED  - National Geographic Society U.S.
TI  - Hacia lo desconocido: historia de los descubrimientosInto the unknown : the story of exploration 
SN  - 8401607701
AV  - G80 .I5818 1989
U1  - 910/.9 19
PY  - 1989///
CY  - Barcelona
PB  - Plaza & Janés Editores
KW  - Discoveries in geography
KW  - Local
N1  - Includes index; Translation of : Into the unknown, the story of exploration
ER  -