@article{159206,
      recid = {159206},
      title = {Homestudy course 3015-G, environmental protection.},
      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 = {11 v. :},
      year = {1983},
      note = {Cover title.},
      url = {http://library.usi.edu/record/159206},
}