Vol. s2-50, Issue 149, 1870September 01, 1870 EDT
Notes on the Structure of the Crinoidea, Cystidea and Blastoidea
Notes on the Structure of the Crinoidea, Cystidea and Blastoidea
E. Billings,
Billings, E. (1870). Notes on the structure of the Crinoidea, Cystidea and Blastoidea. American Journal of Science, s2-50(149), 225–240. https://doi.org/10.2475/ajs.s2-50.149.225