Impact of Backcountry Recreationists on the Water Quality of ...
Robert G. Werner
Robert G. Werner, R. E. Leonard, James O. Crevelling. NIVERSITY OF MINNE TA 3 1951 002 974 862 4. llliulllllllllllllllllllllllllllllllllllllllllllllllllllllllll 80 l lllllllllllllllllllll Table 2.—Product moment correlation coefficients between degree of use at each ...