British pelagic tunicates. Keys and notes for the identification of the species
Fraser, J.H. (1981). British pelagic tunicates. Keys and notes for the identification of the species. First published 1982. Synopses of the British Fauna, N.S. 20. Cambridge University Press: Cambridge. ISBN 0-521-28367-1. 57 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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