TY  - BOOK
AU  - Hyman, Libbie Henrietta
TI  - Invertebrates
PY  - 1959///
CY  - New York: 
PB  - McGraw-Hill Book Company, Inc., 
KW  - Science
N1  - Vol. 5 (Small coelomate groups chaetognatha, hemichordata, pogonophora phoronida, ectroprocta, brachiopora sipunculida: the coelomate bilateria); viii, 783p
ER  -