Carruthers, Ian The economics of irrigation / Ian Carruthers and Colin Clark with a foreword by G.H. Peters - Rev. ed - Liverpool : Liverpool University Press, 1981 - 300 p. ; 24 cm. Previous ed.: / by Colin Clark. Oxford : Pergamon, 1970 Bibliography: p. 269-283. - Includes index ISBN: 0853232547 Subjects--Topical Terms: Irrigation--Economic aspects