TY  - RPRT
TI  - Palynological contribution to geologic mapping of coal-bearing upper Paleocene rocks in the lower Indus coal region, Pakistan
AU  - N. O. Frederiksen
PY  - 1990
DO  - 10.3133/ofr90243
UR  - https://pubs.usgs.gov/publication/ofr90243
ID  - ofr90243
ER  -