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Description: |
7 pages : illustrations ; 28 cm. |
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Bibliography Note: |
Includes bibliographical references (page 7). |
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Additional Physical Forms: |
Online version: Pollution indicator in stream and potable water suppky of the Manitou Experimental Forest, Colorado. Fort Collins, Colo. : USDA Forest Service, Rocky Mountain Forest and Range Experiment Station, [1982] (OCoLC)624443915 |