Hay, Oliver P. <br/><br/>
The pleistocene of North America and its vertebrated animals from the states east of the Mississippi River and from the Canadian. 

 - Washington :  Carnegie Institution,  1923. 
 - 499 p. :  il. ;  25 cm 
 - Carnegie Inst. of Washington  322 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Paleontología<br/>Paleozoología<br/>Vertebrata
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Libro
<br/><br/><label>Universal Decimal Class. No.: </label>566(7-11)