@article{NARMS:SourceID:133557, author = {Clark, A. H., Clark, A. M.}, journal = {Bulletin of the United States National Museum}, issue = {82}, pages = {1-860}, title = {A monograph of the existing crinoids}, url = {https://vliz.be/vmdcdata/narms/narms.php?p=sourcedetails&id=133557}, year = {1967} }