TY  - BOOK
AU  - Hyman, Libbie Henrietta
TI  - The invertebrates : vol. 3 : acanthocephala,  aschelminthes and entoprocta, the  pseudocoelomate bilateria
U1  - 592 
PY  - 1951///
CY  - New York
PB  - McGraw-Hill
N1  - PR
ER  -