@article{ERMS:SourceID:7786, author = {Laubenfels, M.W. de}, journal = {Occasional Papers of the Allan Hancock Foundation}, pages = {1-217}, title = {The order Keratosa of the phylum Porifera. A monographic study.}, url = {http://www.marbef.org/data/aphia.php?p=sourcedetails&id=7786}, volume = {3}, year = {1948} }