Poort, Jon M. <br/><br/>
Historical geology :  interpretations and applications / 
Jon M. Poort, Roseann J. Carlson 
 - 4th ed. 
 - New York :  MacMillan,  1992 
 - 241 p. :  ill. ;  28 cm. 
<br/><br/><label>ISBN: </label>0023959959 
<br/><br/><label>LCCN: </label>91-024516 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Historical geology