Sponges of the North East Atlantic 2.0: A study on the genus Tethya (Porifera, Demospongiae) and new perspectives in sponge systematics. pp. 205-225. In: J. Vacelet and N. Boury-Esnault, eds. Taxonomy of Porifera from the NE Atlantic and Mediterranean Sea. NATO ASI Ser. G13. Springer Verlag, Berlin, Heidelberg: 1-332.

Authors(s)	Sarà, M.
Year	1987
Title	A study on the genus Tethya (Porifera, Demospongiae) and new perspectives in sponge systematics. pp. 205-225. In: J. Vacelet and N. Boury-Esnault, eds. Taxonomy of Porifera from the NE Atlantic and Mediterranean Sea. NATO ASI Ser. G13. Springer Verlag, Berlin, Heidelberg: 1-332.