Remson, Irwin. Numerical methods in subsurface hydrology : with an introduction to the finite element method / [by] Irwin Remson, George M. Hornberger [and] Fred J. Molz. - New York : Wiley-Interscience, c1971. - xvi, 389 p. : ill. ; 23 cm. Includes bibliographies and index. ISBN: 0471716502 LCCN: 75-142139 Subjects--Topical Terms: Groundwater.Numerical analysis.