Barrington, E. J. W. <br/><br/>
The biology of Hemichordata and Protochordata / 
E. J. W. Barrington. 
 - San Francisco,  W. H. Freeman  1965 
 - vi, 176 p. :  ill. ;  22 cm. 
 - University reviews in biology .
 - University reviews in biology .
<br/><br/>Bibliography and index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hemichordata.<br/>Tunicata.<br/>Amphioxus.
<br/><br/><label>Dewey Class. No.: </label>593.9  / BAB 1965