TY  - BOOK
AU  - Nichols,David
TI  - Echinoderms
T2  - Hutchinson University Library: Biological sciences
SN  - 0090659937
U1  - 593.9 NIC/E 
PY  - 1969///
CY  - . - London
PB  - : Hutchinson
KW  - Echinodermata
N1  - Bibliography: p. [176]-184
ER  -