TY  - BOOK
AU  - Hyman Libbie Henrietta
TI  - Invertebrates :Protozoa through ctenophora
T2  - McGraw-hill publications in the zoological science
U1  - K1, H0.1;2 
PY  - 1940///
CY  - New York 
PB  - McGraw-Hill      
KW  - Invertebrates
ER  -