@article{239608,
      note = {Shipping list no.: 2000-0879-M.},
      author = {Tuttle, M. L. and Charpentier, Ronald R. and Brownfield,  M. E.},
      url = {http://library.usi.edu/record/239608},
      title = {The Niger Delta petroleum system Niger Delta province,  Nigeria, Cameroon, and equatorial Guinea, Africa /  [microform] :},
      publisher = {U.S. Dept. of the Interior, U.S. Geological Survey,},
      recid = {239608},
      pages = {1 v.},
      address = {[Reston, Va.?] :},
      year = {1999},
}