00286nam a2200109Ia 450000500170000000800410001708200150005810000200007324500280009326000470012130000080016820260225044830.0260224s9999||||xx |||||||||||||| ||und||  a551.49 LIN  aRay K. Linsley  0aHydrology for engineers  aIslamabad: National Book Foundation c1982  a508