Clark, A. H. (1920). Echinoderms. Report of the Canadian Arctic Expedition 1913-1918. Vol. VIII. Mollusks, Echinoderms, Coelenterates, etc. Part C: Echinoderms: pp. 1c-13c.
145691
Clark, A. H.
1920
Echinoderms. Report of the Canadian Arctic Expedition 1913-1918. Vol
VIII. Mollusks, Echinoderms, Coelenterates, etc. Part C: Echinoderms