The Sea, Volume 6, Marine Modeling edited by E. D. Goldberg et al. (New York: John Wiley & Sons, Inc., 1977), 1048 pp., hardcover, $49.50. Physical Oceanography of Estuaries (and Associated Coastal Waters) by C. B. Officer, New York: (John Wiley and Sons, Inc., 1976), 465 pp., $27.50.