TY - JFULL ID - 118546063 TI - Great Lakes update. PY - 1994 SN - 21666040 PB - [Chicago, IL?] : US Army Corps of Engineers, North Central Division, DB - UniCat KW - Water levels KW - Water levels. KW - Great Lakes. KW - Level, Water KW - Levels, Water KW - Water KW - Hydraulic measurements KW - Water level KW - Level KW - Levels KW - Laurentian Great Lakes KW - Ontario KW - United States UR - https://www.unicat.be/uniCat?func=search&query=sysid:118546063 AB - ER -