TY  - RPRT
TI  - Occurrence and origin of minerals in a chamosite-bearing coal of Late Permian age, Zhaotong, Yunnan, China
AU  - S. Dai
AU  - C. L. Chou
PY  - 2007
DO  - 10.2138/am.2007.2496
UR  - https://pubs.usgs.gov/publication/70031087
ID  - 70031087
ER  -