Walne, P.R. <br/><br/>
Culture of bivalve molluscs: 50 years experience at Conwy / 
by P.R.Walne 
 - 2nd ed 
 - England  Fishing News Books Ltd  1979 
 - 189 p. 
<br/><br/><label>Dewey Class. No.: </label>639.4  / WAL