Knapp, Brian J. Elements of geographical hydrology / Brian Knapp. - London ; Boston : London ; Boston : Allen & Unwin, 1979. Includes index. Bibliography: p. [82]. ISBN: L.2.25 LCCN: 78040373 Nat. Bib. No.: GB*** Subjects--Topical Terms: Hydrology. LC Class. No.: GB661.2 / .K55 Dewey Class. No.: 551.4/8