TY  - BOOK
AU  - Lange, Frederick
TI  - Before Guanacaste: an archaeologist looks at the first 10.000 years
U1  - 972.866 L269b 
PY  - 2006///
CY  - Costa Rica
PB  - Costa Rica
KW  - COSTA RICA
KW  - GUANACASTE
KW  - ARQUEOLOGÍA
ER  -