Progress report on Black Mesa monitoring program--1985-86 /

by Hill, George W., 1926-
Tucson, Ariz. : U.S. Dept. of the Interior, Geological Survey, 1986

Progress report on the ground-water, surface-water, and quality-of-water monitoring program, Black Mesa area, northeastern Arizona-- 1987 /

by Hill, George W., 1926-
Denver, Colo. : U.S. Dept. of the Interior, Geological Survey : Books and Open-File Reports Section [distributor], 1987

Progress report on Black Mesa monitoring program, 1984 /

by Hill, George W., 1926-
Denver, Colo. : U.S. Dept. of the Interior, Geological Survey : Books and Open-File Services Section, Western Distribution Branch [distributor], 1985