TY  - RPRT
TI  - Geology and resource assessment of Costa Rica at 1:500,000 scale; a digital representation of maps of the U.S. Geological Survey's 1987 Folio I-1865
AU  - Paul G. Schruben
PY  - 1996
DO  - 10.3133/ds19
UR  - https://pubs.usgs.gov/publication/ds19
ID  - ds19
ER  -