Pearl, Richard M. . <br/><br/>
Guide to Geological Literature /  Textual Documents 
Richard M. Pearl. 
 - 1st ed. / 
 - New York :  McGraw - Hill book company ,  1951. 
 - x,239p. :  ill ;  22cm . 
<br/><br/>Index 
<br/><br/><label>Subjects--Index Terms: </label>Geology G-Geology 
<br/><br/><label>Dewey Class. No.: </label>550  / P 315 G