Catalogue of marine Polyzoa in the ... British Museum British Museum (Natural History). Department of Zoology. [Bryozoa] creator Busk, George, 1807-1886 contributor text book London 1852-75 1852 1875
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ENG Pt. 1. Cheilostomata. pp. viii, 54, vi: pls. 1-68. 1852 -- Pt. 2. Cheilostomata. pp. viii, 55-120: pls. 69-124. 1854 -- Pt. 3. Cyclostomata. pp. viii, 39: 38 pls. 1875. https://www.biodiversitylibrary.org/bibliography/8580 182918834 10.5962/bhl.title.8580