British prosobranch and other operculate gastropod molluscs. Keys and notes for the identification of the species
Graham, A. (1971). British prosobranch and other operculate gastropod molluscs. Keys and notes for the identification of the species. Synopses of the British Fauna, N.S. 2. Academic Press: London and New York. ISBN 0-12-294850-5. 112 pp.
Part of: Barnes, R.S.K.; Crothers, J.H. (Ed.) Synopses of the British Fauna. Linnean Society of London: London; New York. ISSN 0082-1101, more
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