Blackwelder Richard E. <br/><br/>
Taxonomy : A text and referenc book 
by Blackwelder Richard E. 
 -  1967 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>66601 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Toxonomy
<br/><br/><label>Dewey Class. No.: </label>K:11, K7;1