TY  - BOOK
AU  - Janus,J.B.
AU  - Shirley,B.S.
ED  - United States.
TI  - Analyses of tipple and delivered samples of coal: collected during the fiscal year 1973 
U1  - 553.240973 
PY  - 1973///
CY  - Washington, D.C.
PB  - U.S. Dept. of the Interior, Bureau of Mines
KW  - Coal
KW  - Analysis
ER  -