Poort Jon M <br/><br/>
Historical geology: Interpretations and applications 
by Poort Jon M 
 - 3 
 - Minneapolis  Burgess         1980 
 - 175p.  cm. 
<br/><br/><label>Standard No.: </label>68340 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology
<br/><br/><label>Dewey Class. No.: </label>Hv, L6;M0-;1-;7