Descriptive physical oceanography : an introduction / by George L. Pickard. Pickard, George L. Oceanography. GC150.5 .P52 1979 551.46 PID Includes index. Bibliography: p. 223-226. Oxford ; New York : Pergamon Press, 1979. 1979. 1979 Text ix, 233 p., [2] leaves of plates : eng