TY - BOOK T1 - Documentation of a computer program to simulate horizontal-flow barriers using the U.S. Geological Survey's modular three-dimensional finite-difference ground-water flow model DA - 1993. CY - Sacramento, Calif. : CY - Denver, CO : AU - Hsieh, P. A. AU - Freckleton, John R. CN - I 19.76: PB - U.S. Dept. of the Interior, U.S. Geological Survey ; PB - Books and Open-File Reports Section [distributor], PP - Sacramento, Calif. : PP - Denver, CO : PY - 1993. N1 - Distributed to depository libraries in microfiche. N1 - Shipping list no.: 94-0205-M. ID - 198870 KW - Groundwater flow TI - Documentation of a computer program to simulate horizontal-flow barriers using the U.S. Geological Survey's modular three-dimensional finite-difference ground-water flow model ER -