Low-flow investigations
著者
書誌事項
Low-flow investigations
（Techniques of water-resources investigations of the United States Geological Survey, Bk. 4 . Hydrologic analysis and interpretation ; ch. B 1）
U.S. G.P.O. , For sale by the Distribution Branch, U.S. Geological Survey, 1972
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注記
Includes bibliographical references
"U.S. Department of the Interior, March 3, 1849"