GWM--a ground-water management process for the U.S. Geological Survey Modular Ground-Water Model (MODFLOW-2000) / by David P. Ahlfeld , Paul M. Barlow, and Ann E. Mulligan.
Imprint
Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : For sale by USGS Information Services, 2005.