Duff, P. McL.D., Hallam, A. and Walton, E.K <br/><br/>
Cyclic sedimentation 
Duff, P. McL.D., Hallam, A. and Walton, E.K 
 - New York  Elsevier   1967 
<br/><br/><label>Dewey Class. No.: </label>552.5  / DUF.C