TY  - CHAP
A1  - Mortensen, T.
TI  - A Monograph of the Echinoidea. I. Cidaroidea, 551 pp., C. A. Reitzel & Oxford University Press, Copenhagen & London.
UR  - http://www.marbef.org/data/aphia.php?p=sourcedetails&id=3176
PY  - 1928
Y2  - 2026-09-12
ER  -