Ground-water data-collection protocols and procedures for the National Water-Quality Assessment Program [electronic resource] : collection and documentation of water-quality samples and related data / by Michael T. Koterba, Franceska D. Wilde, and Wayne W. Lapham.
Imprint
Reston, Va. : U.S. Geological Survey ; Denver, Colo. : Earth Science Information Center, Open-File Reports Section [distributor], 1995.