00282nam a2200109Ia 450000500170000000800410001708200150005810000200007324500290009326000420012230000080016420260225051051.0260224s9999||||xx |||||||||||||| ||und||  a551.49 LIN  aRay K. Linsley  0aHydrology for engineers   aNew York: McGraw-Hill Book Co. c1958  a340