Buchsbaum, Ralph Morris,  1907- <br/><br/>
Animals without backbones  an introduction to the invertebrates 
by Ralph Buchsbaum 
 - 2nd ed. 
 - Chicago, Ill.  University of Chicago Press  1976 
 - xi, 392 p., 78 leaves of plates : ill. ; 23 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 351-357. 
<br/><br/><label>ISBN: </label>0226078701 
<br/><br/><label>LCCN: </label>48-0009508 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Invertebrates