Morphology, behavior, and histogenesis of the pelagosphera larva of Phascolosoma agassizii (Sipuncula)
[by] Mary E. Rice.
- Washington, Smithsonian Institution Press; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.] 1973.
- Smithsonian contributions to zoology ; no. 132 .