Proceedings of the Third International Symposium on Littorinid Biology : Dale Fort Field Centre, Wales, 5-12 September 1990 /
International Symposium on Littorinid Biology(3rd :1990 :Dale Fort Field Centre, Wales)
Grahame, John.
Mill, Peter John.
Reid, David J.
Malacological Society of London.
London : Malacological Society of London,
c1992.