TY  - RPRT
TI  - Distribution of minor elements in some coals in the Western and Southwestern regions of the Interior coal province
AU  - Peter Zubovic
AU  - Nola B. Sheffey
AU  - Taisia Maximovna Stadnichenko
PY  - 1967
DO  - 10.3133/b1117d
UR  - https://pubs.usgs.gov/publication/b1117D
ID  - b1117D
ER  -