@article{Deep-Sea:SourceID:261039, author = {Williams, G.C.}, journal = {Proceedings of the California Academy of Sciences}, issue = {2}, pages = {19-103}, title = {Index Pennatulacea: annotated bibliography and indexes of the Sea Pens (Coelenterata: Octocorallia) of the World 1469-1999}, url = {https://marinespecies.org/deepsea/aphia.php?p=sourcedetails&id=261039}, volume = {51}, year = {1999} }