APA (7th ed.) Citation

United States. Army. Corps of Engineers. Mississippi Valley Division. (1998). Mississippi River: Below Hannibal, Missouri to the Gulf of Mexico (61st edition.). US Army Corps of Engineers, Mississippi Valley Division.

Chicago Style (17th ed.) Citation

United States. Army. Corps of Engineers. Mississippi Valley Division. Mississippi River: Below Hannibal, Missouri to the Gulf of Mexico. 61st edition. [Vicksburg, Mississippi]: US Army Corps of Engineers, Mississippi Valley Division, 1998.

MLA (9th ed.) Citation

United States. Army. Corps of Engineers. Mississippi Valley Division. Mississippi River: Below Hannibal, Missouri to the Gulf of Mexico. 61st edition. US Army Corps of Engineers, Mississippi Valley Division, 1998.