TY - RPRT TI - Chronologic evidence for multiple periods of loess deposition during the Late Pleistocene in the Missouri and Mississippi River Valley, United States: Implications for the activity of the Laurentide ice sheet AU - S.L. Forman AU - E. Arthur Bettis AU - T.J. Kemmis AU - B.B. Miller PY - 1992 DO - 10.1016/0031-0182(92)90184-7 UR - https://pubs.usgs.gov/publication/70017080 ID - 70017080 ER -