1.
 |  | Title: Simulation Analysis of the Ground-Water Flow System in the Portland Basin, Oregon and Washington (U.S. Geological Survey Water-Supply Paper, 2470-B) by David S. Morgan, William D. McFarland, Oregon Water Resources Dept, Portland, Intergovernmental Resource Center of Clark County ISBN: 0607870400 Publisher: U s Geological Survey Pub. Date: 01 June, 1997 List Price: $55.01 Amazon.com Price: $55.01 |
2.
 |  | Title: Comparison of Chlorofluorocarbon Age-Dating With Particle-Tracking Results of a Regional Ground-Water Flow Model of the Portland Basin, Oregon and (U.S. Geological Survey Water-Supply Paper, 2483) by Stephen R. Hinkle, Daniel T. Snyder, Intergovernmental Resource Center of Clark County ISBN: 9997817486 Publisher: United States Geological Pub. Date: 01 March, 1997 List Price: $55.01 Amazon.com Price: $55.01 |
3.
 |  | Title: Description of the Ground-Water Flow System in the Portland Basin, Oregon and Washington (U.S. Geological Survey Water-Supply Paper, 2470-A) by William D. McFarland, David S. Morgan, Oregon Water Resources Dept, Portland, Intergovernmental Resource Center, Intergovernmental Resources Center of Clark and Skamania Counties ISBN: 0607870397 Publisher: Geological Survey Pub. Date: 01 June, 1996 List Price: $55.01 Amazon.com Price: $55.01 |