TY  - JOUR
A1  - Agassiz, A.
JO  - Proceedings of the American Academy of Arts and Sciences
C1  - new series 6, 190-212
TI  - Preliminary report on the Echini of the Exploring Expedition of H.M.S "Challenger". Sir C. Wyville Thomson Chief of Civilian Staff
UR  - https://biodiversitylibrary.org/page/8714483
PY  - 1879
Y2  - 2026-05-18
ER  -