Gertsch W J <br/><br/>
American spiders 
Gertsch W J 
 - 2 
 - New York       Van Nostrand Reinhold        1979 
 - xii, 274p.  cm. 
<br/><br/><label>Standard No.: </label>54270 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Arthropoda<br/>Zoology
<br/><br/><label>Dewey Class. No.: </label>K8823.73, L9