Francis Wilfrid <br/><br/>
Coal: its formation and composition 

 -  1954 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>42254 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal
<br/><br/><label>Dewey Class. No.: </label>F551, J4