00274nam a2200109Ia 450000500170000000800410001708200140005810000200007224500260009226000380011830000080015620260225050933.0260224s9999||||xx |||||||||||||| ||und||  a627.8 JUS  aJoel D. Justin  0aEngineering for dams   aNew York: John Wily & Sons c1965  a929