TY - BOOK AU - Baxter, James W. CN - QE105 CN - QE105 CY - Urbana, DA - 1960. ID - 65582 KW - Limestone KW - Geology, Stratigraphic N1 - Cover title. PB - Division of the Illinois State Geological Survey, PP - Urbana, PY - 1960. T1 - Salem limestone in southwestern Illinois. TI - Salem limestone in southwestern Illinois. VL - 284 ER -