TY  - BOOK
AU  - Hyman, Libbie Henrietta
TI  - Invertebrates, Vol.1: Protozoa through ctenophora
U1  - R  592  HYM-I.1 
PY  - 1940///
CY  - Mcgraw Hill Book Co., New York
KW  - Invertebrates-- Zoology
ER  -