@article{184919,
      recid = {184919},
      author = {Wilson, Richard, and Spengler, John D.},
      title = {Particles in our air : concentrations and health effects  /},
      publisher = {Harvard School of Public Health ;},
      address = {[Cambridge, Mass.] :},
      pages = {v, 259 p. :},
      year = {1996},
      url = {http://library.usi.edu/record/184919},
}