@article{263476,
      note = {Distributed to depository libraries in microfiche.},
      author = {Zech, R. S. and Brownfield, Isabelle K.},
      url = {http://library.usi.edu/record/263476},
      title = {Results of sample analysis of heavy-mineral deposits in  the Point Lookout sandstone, southwest Colorado and  northwest New Mexico [microform] /},
      publisher = {U.S. Geological Survey :},
      recid = {263476},
      pages = {1 v.},
      address = {[Denver, CO] :},
      year = {1990},
}