A key to the British fresh- and brackish-water Gastropods, with notes on their ecology
Macan, T.T.; Cooper, R.D. (1977). A key to the British fresh- and brackish-water Gastropods, with notes on their ecology. Fourth edition. Scientific Publication. Freshwater Biological Association, 13. Freshwater Biological Association: Ambleside. ISBN 90-0386-30-4.
Part of: Scientific Publication. Freshwater Biological Association. Freshwater Biological Association: Ambleside. ISSN 0367-1887, more
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