@article{61461,
      note = {At head of title: State of Illinois. Department of  Registration and Education.},
      author = {Mast, Richard F. and Ruch, R. R. and Meents, Wayne  Franklin,},
      url = {http://library.usi.edu/record/61461},
      title = {Vanadium in Devonian, Silurian, and Ordovician crude oils  of Illinois,},
      publisher = {Illinois State Geological Survey,},
      recid = {61461},
      pages = {14 p.},
      address = {Urbana,},
      year = {1973},
}