TY  - BOOK
AU  - Chalekode,P.K.
AU  - Blackwood,T.R.
TI  - Source assessment coal refuse piles abandoned mines  and outcrops  state of the art
U1  - 343.07752 
PY  - 1978///
CY  - Washington
PB  - U.S. G.P.O.
KW  - Coal Mining
KW  - United States
ER  -