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Чикаго-гийн эшлэл (17 дахь хэвлэлт)National Research Council (U.S.). Committee to Review the Corps of Engineers Restructured Upper Mississippi River-Illinois Waterway Draft Feasibility Study ба Inc ebrary. Review of the U.S. Army Corps of Engineers Restructured Upper Mississippi-Illinois River Waterway Feasibility Study. Washington, D.C.: National Academies Press, 2004.
MLA -ийн эшлэл (9 дэх хэвлэлт)National Research Council (U.S.). Committee to Review the Corps of Engineers Restructured Upper Mississippi River-Illinois Waterway Draft Feasibility Study ба Inc ebrary. Review of the U.S. Army Corps of Engineers Restructured Upper Mississippi-Illinois River Waterway Feasibility Study. National Academies Press, 2004.