Culture of bivalve molluscs : 50 years' experience at Conway / P. R. Walne. Walne, Peter Richard. Fisheries Experiment Station, Conway, Wales. Oyster culture. Bivalve culture. SH371 .W34 639.411 WAC Includes bibliographies and index. West Byfleet : Fishing News [for the Buckland Foundation], 1974. 1974. 1974 Text xvi, 173 p. : eng