Geological Survey (U.S.) & Groschen, G. E. (2000). Water quality in the Lower Illinois River Basin, 1995-98. U.S. Geological Survey.
Chicagoスタイル(17版)引用形式Geological Survey (U.S.) , G. E. Groschen. Water Quality in the Lower Illinois River Basin, 1995-98. Reston, VA: U.S. Geological Survey, 2000.
MLA(9版)引用形式Geological Survey (U.S.) , G. E. Groschen. Water Quality in the Lower Illinois River Basin, 1995-98. U.S. Geological Survey, 2000.
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