Viessman, Warren. Introduction to hydrology / Warren Viessman, Jr., Gary L. Lewis. - 5th ed. - Upper Saddle River, NJ : Prentice Hall, c2003. - xii, 612 p. : ill., maps ; ISBN: 067399337X Subjects--Topical Terms: Hydrology. LC Class. No.: GB661.2 / .V44 2003