Dice, Lee Raymond. <br/><br/>
The biotic provinces of north america 

 - Ann Arbor :  University of Michigan Press,  1943 
 - 78 p.  : ilus. 
<br/><br/><label>LCCN: </label>19501 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecología.
<br/><br/><label>Dewey Class. No.: </label>574.5  / D52