TY  - RPRT
TI  - Bituminous coal; its origin, varieties and a few of its special uses
AU  - E. B. Andrews
PY  - 1873
DO  - 10.1016/s0016-0032(73)90398-0
UR  - https://pubs.usgs.gov/publication/70009954
ID  - 70009954
ER  -