prepared by the Committee on Operation and Maintenance of Irrigation and Drainage Systems of the Irrigation and Drainage Division of the American Society of Civil EngineersThe American Society of Civil Engineersc1991
prepared by the Committee on Operation and Maintenance of Irrigation and Drainage Systems of the Irrigation and Drainage Division of the American Society of Civil Engineers ; editors, William R. Johnson, James B. Robertson ; contributing authors, Albert J. Clemmens ... [et al.]The American Society of Civil Engineersc1991