TY  - GEN
AU  - Hyman, Libbie Henrietta
TI  - The Invertebrates : Echinodermata [The coelomate bilateria ] ; Vol.-IV
U1  - 592 
PY  - 1993///
CY  - New Delhi
PB  - CBS Publishers & Distributors
KW  - ZOO.--INVERTEBRATE
ER  -