Biology of bryozoans / 
edited by Robert M. Woollacott [and] Russel L. Zimmer. 
 - New York :  Academic Press,  1977. 
 - xvii, 566 p. :  ill. ;  24cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>012763150X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Polyzoa.