TY  - RPRT
TI  - Guides to exploration for coal deposits in Permo-Carboniferous rocks in Sao Paulo State, Brazil
AU  - R. M. Flores
PY  - 1984
DO  - 10.3133/ofr84264
UR  - https://pubs.usgs.gov/publication/ofr84264
ID  - ofr84264
ER  -