@article{19953,
      author = {Barker, Colin.},
      url = {http://library.usi.edu/record/19953},
      title = {Organic geochemistry in petroleum exploration /},
      publisher = {distributed by the AAPG Dept. of Educational Activities,},
      recid = {19953},
      pages = {ii, 159 p. :},
      address = {[Tulsa, Okla.] :},
      year = {1979},
}