TY  - BOOK
AU  - Nelson,Harold D.
ED  - American University (Washington, D.C.). ǂb Foreign Area Studies.
TI  - Costa Rica: a country study 
AV  - D 24.5 
PY  - 1983///
CY  - Washington
PB  - Foreign Area Studies The American University
KW  - History
KW  - Costa Rica
ER  -