TY  - BOOK
AU  - Hyman, Libbie Henrietta
TI  - The invertebrates : : protozoa through ctenophora 
U1  - 592 HYM 
PY  - 1940///.
CY  - New York : 
PB  - McGraw-Hill Book Company, Inc., 
KW  - Cell-Inverbrates
KW  - Invertabrates-Protoplasm
N1  - Includes index.
ER  -