Hyman, Libbie Henrietta <br/><br/>
The Invertebrates. Vol. VI:  aplacophora, polyplacophora, monoplacophora, gastropoda The coelomate Bilateria 

 - New York:  McGraw-Hill Book Company,  1967 
 - vii, 792p.:  ill.;  24cm 
<br/><br/> Acc. No. 03915