TY - RPRT TI - Isotopic evidence for glacial meltwater recharge to the Cambrian-Ordovician aquifer, north-central United States AU - D. I. Siegel AU - R.J. Mandle PY - 2017 DO - 10.1016/0033-5894(84)90026-7 UR - https://pubs.usgs.gov/publication/70013868 ID - 70013868 ER -