TY  - RPRT
TI  - Bibliography of publications containing major, minor, and trace element data from the National Coal Resources Data System
AU  - A.C. Finkelman
AU  - C.J. Wong
AU  - A.C. Cheng
AU  - R. B. Finkelman
PY  - 1991
DO  - 10.3133/ofr91123
UR  - https://pubs.usgs.gov/publication/ofr91123
ID  - ofr91123
ER  -