Welty, Joel Carl. <br/><br/>
The life of birds / 
Joel Carl Welty. 
 - 2nd ed. 
 - Philadelphia :  Saunders college publishing,  c 1979. 
 - xii, 623 p. :  ill. ;  28 cm. 
<br/><br/> Includes index. 
<br/><br/>333  333 
<br/><br/><label>ISBN: </label>0-7216-9231-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birds.
<br/><br/><label>Dewey Class. No.: </label>568.2 / W467l