ebrary, Inc. (2005). Water resources planning for the upper Mississippi river and Illinois waterway. National Academies Press.
Chicago-referens (17:e uppl.)ebrary, Inc. Water Resources Planning for the Upper Mississippi River and Illinois Waterway. Washington, D.C.: National Academies Press, 2005.
MLA-referens (9:e uppl.)ebrary, Inc. Water Resources Planning for the Upper Mississippi River and Illinois Waterway. National Academies Press, 2005.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.