TY  - RPRT
TI  - Arsenic and lead concentrations in the Pond Creek and Fire Clay coal beds, eastern Kentucky coal field
AU  - J.C. Hower
AU  - J.D. Robertson
AU  - A.S. Wong
AU  - C.F. Eble
AU  - L.F. Ruppert
PY  - 1997
DO  - 10.1016/s0883-2927(96)00071-6
UR  - https://pubs.usgs.gov/publication/70019737
ID  - 70019737
ER  -