Robert T. Orr <br/><br/>
Vertebrate biology. Ed 5 

 - 5 th Ed 
 - Philadelphia  Saunders College Publishing  1982 
 - 568p 
<br/><br/>Robert T. Orr: Vertebrate biology. Ed 5.  (5 th Ed)  Philadelphia.  Saunders College Publishing, 1982. 0-03-05759-7--(596ORR)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>0-03-05759-7 
<br/><br/><label>Dewey Class. No.: </label>596  / ORP