The Biology of the porifera; edited by W. G. Fry. - Zoological Society of London ([London] Published for the Zoological Society of London by Academic Press, 1970)
English, French or German. "The proceedings of a symposium held at the Zoological Society of London on 10 and 11 September, 1968, with additional articles presented during colloquia held at the British Museum (Natural History) on 12 and 13 September, 1968." Includes bibliographies.
Keywords: Sponges --Congresses.