Richards, OW. <br/><br/>
IMMS' general textbook of entomology; Vol. 1: Structure... 

 - 10th ed. 
 - LoNew Delhion  Chapman & Hall  1977 
 - viii, 418p, 22 cm. 
<br/><br/><label>Dewey Class. No.: </label>595.7,  / D, ric