World energy confrence <br/><br/>
Report: Coal resourses 

 - New York      1978 
 - x,138p.  cm. 
<br/><br/><label>Standard No.: </label>46315 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>H55403t, L8