The ever-changing sea [by] David B. Ericson and Goesta Wollin. Illus. by Ingrid Niccoll. Ericson, David B. Wollin, Goesta, joint author. Oceanography Popular works. GC21 .E73 551.46 19 ERE Bibliography: p. 351-354. New York, Knopf, 1967. 1967. 1967 Text xiii, 354 p. : eng