TY  - BOOK
AU  - Sykes,Percy
TI  - A history of exploration from the earliest times to the present day / 
PY  - 1934///
CY  - London : 
PB  - George Routledge & Sons, 
KW  - Descubrimientos geográficos-
KW  - Historia
KW  - Exploradores
KW  - embne
ER  -