Hager, Willi H. Wastewater hydraulics: theory and practice/ Willi H. Hager - Berlin: Springer, c1999 - xix, 628 p.: ill.; 24 cm. Includes bibliographical reference and index ISBN: 354062998X DM 249.00 Subjects--Topical Terms: Sewerage--Fluid dynamicsPumpingDrainage Dewey Class. No.: 628.3