Buchsbaum, Ralph Morris, 1907-  Buchsbaum, Ralph Morris, 1907- <br/><br/>
Animals without backbones :  an introduction to the invertebrates. 

 - Rev. ed. 
 - Chicago :  University of Chicago Press,  [1962] 
<br/><br/> "Further knowledge:" p. 346-376. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Invertebrates.