@article{198692,
      note = {Distributed to depository libraries in microfiche.},
      author = {Zech, R. S. and Keighin, C. William.},
      url = {http://library.usi.edu/record/198692},
      title = {Porosity and permeability data for the Point Lookout  Sandstone from core holes 1 HCMS and 2 HCMS, northern San  Juan basin, La Plata County, Colorado [microform] /},
      publisher = {U.S. Dept. of the Interior, U.S. Geological Survey ;},
      recid = {198692},
      pages = {180 p. :},
      address = {Lakewood, CO :},
      year = {1993},
}