Barners, R. D. <br/><br/>
Invertebrate zoology/ 
Robert D. Barners,  
 - 2nd 
 - Philadelphia:  W.B. Sunders,  1968. 
 - ixx,743 p.:  ill.;  27 cm. 
<br/><br/> Includes bibliography and index. 
<br/><br/><label>ISBN: </label>0721615619 
<br/><br/><label>LC Class. No.: </label>DUCE QL362.B27