Ries, H <br/><br/>
Elements of engineeing geology 

 - 2nd 
 - New York  John Wiley & Sons  1949 
 - vii, 469p. 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Geology
<br/><br/><label>Dewey Class. No.: </label>550  / R51E