Buchsbaum, Ralph <br/><br/>
Animals without backbones, Vol.2: An introduction to the invertebrates 

 -  Penguin Books Ltd., England  1948 
 - 401 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Invertebrates; Zoology
<br/><br/><label>Dewey Class. No.: </label>592  BUC-A.2