Sea-level research : a manual for the collection and evaluation of data / edited by Orson van de Plassche. Plassche, Orson van de. Sea-level Research. GC89 .S42 1986 551.46 19 Includes bibliographical references and index. Norwich : Geo Books, c1986. c1986. 1986 Text xxv, 618 p., [2] p. of plates : eng