TY  - RPRT
TI  - Coal in Costa Rica; a progress report, 1981
AU  - E.R. Landis
AU  - R. L. Miller
PY  - 1985
DO  - 10.3133/ofr85369
UR  - https://pubs.usgs.gov/publication/ofr85369
ID  - ofr85369
ER  -