Townson, John M. Free-surface hydraulics / [Books]. John M. Townson. - London ; Boston : Unwin Hyman, 1991. - x, 228 p. : ill. ; 25 cm. Includes bibliographical references and index. ISBN: 0046270108 LCCN: 90012389 Subjects--Topical Terms: Hydrodynamics.Water waves.