@article{159204,
      recid = {159204},
      title = {Homestudy course 3015-G, environmental protection : final  exam.},
      publisher = {Center for Professional Development and Training, U.S.  Dept. of Health and Human Services, Public Health Service,  Centers for Disease Control,},
      address = {[Atlanta, Ga.?] :},
      pages = {1v. (loose-leaf) :},
      year = {1983},
      note = {Cover title.},
      url = {http://library.usi.edu/record/159204},
}