Water chemistry of Rocky Mountain front range aquatic ecosystems. -- Fort Collins : USDA Forest Service, 1996. -- 13 s. : 4 obr., 1 tab. ; 28 cm. -- (Research Paper ; RM-RP-325). -- (brož.) : .00

504.054+504.5:502.3+574.5+556.53+504.3.054:556.1+546.212
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