Sponges of the North East Atlantic 2.0: Porifera. In: S.P. Parker, ed. Synopsis and classification of living organisms, vol. 1. McGraw-Hill, New York: 640-666.

Authors(s)	Hartman, W.D.
Year	1982
Title	Porifera. In: S.P. Parker, ed. Synopsis and classification of living organisms, vol. 1. McGraw-Hill, New York: 640-666.