TY - BOOK AU - Ritchey,Joseph D. AU - Rumbaugh,James O. TI - Subsurface fluid flow (ground-water and vadose zone) modeling T2 - STP SN - 0803120214 U1 - Cir. 551.49 S83 PY - 1996/// CY - West Conshohocken, Pa. PB - ASTM KW - Groundwater flow KW - Mathematical models KW - Congresses N1 - Papers from a symposium held June 22-23, 1996, in Denver Colo; Includes bibliographical references and indexes ER -