@article{57822,
      author = {Cameron, A. R. and Birmingham, T. F.,},
      url = {http://library.usi.edu/record/57822},
      title = {Petrographic and chemical properties of a lignite from  Estevan, Saskatchewan},
      publisher = {Dept. of Energy, Mines and Resources},
      recid = {57822},
      pages = {iii, 20 p.},
      address = {[Ottawa]},
      year = {1971},
}