Water levels of the Great Lakes :
report on lake regulation.

APA Citation

United States. Army. Corps of Engineers. North Central Division. (1965). Water levels of the Great Lakes: report on lake regulation. Chicago. Ill.: U.S. Army Engineer Division, North Central, Corps. of Engineers.

MLA Citation

United States. Army. Corps of Engineers. North Central Division. Water Levels of the Great Lakes: Report On Lake Regulation. Chicago. Ill.: U.S. Army Engineer Division, North Central, Corps. of Engineers, 1965.

Warning: These citations may not always be complete (especially for serials).