Libbie Henrietta Hyman <br/><br/>
Invertebrates Vol.5: Smaller coelomate groups chaetognatha, hemichordata, pogonophora, phoronida, ectoprocta, brachiopoda sipunculida the coelomate bilateria 

 - New York  McGraw-Hill  1955 
 - 783p. 
 - McGraw Hill Publications in the zoological sicence .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Invertebrates<br/>Zoology
<br/><br/><label>Dewey Class. No.: </label>592  HYM-I.5