Gertsch, Willis John <br/><br/>
American spiders 
Willis J. Gertsch. 
 - 2d ed. 
 - New York  Van Nostrand Reinhold Co.  c1979. 
 - xiii, 274 p., [32] leaves of plates  ill. (some col.)  24 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 259-260. 
<br/><br/><label>ISBN: </label>0442226497 
<br/><br/><label>LCCN: </label>78006646  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Spiders--North America.<br/>Arachnida--North America.
<br/><br/><label>LC Class. No.: </label>QL458.4  / .G47 1979 
<br/><br/><label>Dewey Class. No.: </label>595/.44/097