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1972 R.E. Petit's Intenational Directory of Conchologists worldwide marine shells: Cypraea, Murex - Edit
1974 The Shell Cabinet’s International Directory of Conchologists 1976 The Shell Cabinet’s International Directory of Conchologists 1978-79 The Shell Cabinet’s International Directory of Conchologists 1982-83 The Shell Cabinet’s International Directory of Conchologists 1985 The Shell Cabinet’s International Directory of Conchologists worldwide marine shells: Cypraea, Murex - Edit
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