New York: McGraw-Hill Book Company, 1959. - 783 p.
This is Volume V of a 6-volume monograph treatise on the invertebrate metazoans. Volume V deals with Chaetognatha, Pogonophora, Hemichordata, Phoronida, Ectoprocta, Brachiopoda, Sipunculida, etc. A thorough academic classic in invertebrate zoology.