TY - RPRT TI - Effects of variations in recharge on groundwater quality AU - Donald O. Whittemore AU - K.M. McGregor AU - G.A. Marotz PY - 1989 DO - 10.1016/0022-1694(89)90170-4 UR - https://pubs.usgs.gov/publication/70015462 ID - 70015462 ER -