TY  - BOOK
AU  - Hyman, Libble Henrietta
TI  - The Invertebrates : Platyhelminthes and Rhymchocoela . The acoelomate Bilateria
U1  - 592 
PY  - 1951///
CY  - Delhi
PB  - McGrow-Hill
KW  - Zoology
ER  -