Comparative study of ground-water quality, 1976 and 1996, and initial gain-and-loss assessment of Boulder Creek, Boulder County, Colorado /
by Breton W. Bruce, and Christopher O'Riley ; prepared in cooperation with the Boulder County Health Department, and the City of Boulder, Colorado.

APA Citation

Bruce, B. W., O'Riley, C., Geological Survey (U.S.)., Boulder (Colo.)., Boulder County (Colo.). Health Department. (1997). Comparative study of ground-water quality, 1976 and 1996, and initial gain-and-loss assessment of Boulder Creek, Boulder County, Colorado. Denver, Colo.: U.S. Dept. of the Interior, U.S. Geological Survey .

MLA Citation

Boulder County (Colo.). Health Department, et al.. Comparative Study of Ground-water Quality, 1976 And 1996, And Initial Gain-and-loss Assessment of Boulder Creek, Boulder County, Colorado. Denver, Colo.: U.S. Dept. of the Interior, U.S. Geological Survey , 1997.