Schmidt, Richard A. <br/><br/>
Coal in America  : an encyclopedoa of reserves, production and use 
Richard A. Schmidt 
 - New York:  McGraw-Hill,  1979. 
 - 458p. 
<br/><br/> Includes index 
<br/><br/><br/>eng 
<br/><br/><label>Dewey Class. No.: </label>333.82  / SCC