A revision of the classification of the calcareous sponges : with a catalogue of the specimens in the British Museum (Natural History)
London : Printed by order of the trustees of the British Museum (Natural History), 1963.
Natural History Museum Library, London
Errata inserted on contents page: Page v. Against 'III A Systematic…' amend '152' to read '151' Page 314. In text-figure caption amend page reference '309' to read '308'