TY - BOOK T1 - Vanadium in Devonian, Silurian, and Ordovician crude oils of Illinois, DA - 1973. CY - Urbana, AU - Mast, Richard F. AU - Ruch, R. R. AU - Meents, Wayne Franklin, VL - 483 CN - QE105 CN - QE105 PB - Illinois State Geological Survey, PP - Urbana, PY - 1973. N1 - At head of title: State of Illinois. Department of Registration and Education. ID - 61461 KW - Petroleum TI - Vanadium in Devonian, Silurian, and Ordovician crude oils of Illinois, ER -