Blackwelder, Richard E. <br/><br/>
CRC handbook of animal diversity / 
authors, Richard E. Blackwelder, George S. Garoian 
 - Boca Raton, Fla. :  CRC Press,  1986 
 - 555 p. :  ill. ;  27 cm. 
<br/><br/><label>ISBN: </label>0849329922  RM596.70 
<br/><br/><label>LCCN: </label>85-21291 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zoology--Variation