@article{ETD,
      school = {Ph.D.},
      author = {Watson, John G. and },
      url = {http://digitalcollections.ohsu.edu/record/317},
      title = {Chemical element balance receptor model methodology for  assessing the sources of fine and total suspended  particulate matter in Portland, Oregon},
      publisher = {Oregon Graduate Center},
      number = {ETD},
      doi = {https://doi.org/10.6083/M41G0J7Q},
      recid = {317},
      address = {1979},
}