Fretter, V., & Graham, A. (1962). British prosobranch molluscs. Ray society.
Chicago Edition CitationFretter, Vera, and Alastair Graham. British Prosobranch Molluscs. London: Ray society, 1962.
Deismireacht MLAFretter, Vera, and Alastair Graham. British Prosobranch Molluscs. Ray society, 1962.
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