Blackwelder, Richard Eliot,  1909-. <br/><br/>
Taxonomy :  a text and reference book / 
Richard E. Blackwelder. 
 - New York :  John Wiley & Sons,  1967. 
 - xiv, 698 p. :  ill. ;  24 cm. 
<br/><br/>Bibliography : p. 607-661. 
<br/><br/><label>ISBN: </label>047107800X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zoology--Classification.