Janus, J. B. <br/><br/>
Analyses of tipple and delivered samples of coal :  collected during the fiscal year 1977/ 
by J. B. Janus 
 - Washington, D.C. :  U. S. Dept. of the Interior, Bureau of Mines,  1978 
 - 15 p. ;  26 cm. 
 - Report of investigations(Dept. of energy)/ET;  0045 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal--Analysis
<br/><br/><label>Dewey Class. No.: </label>US 553.240973  / J 268(Apr./1978)