1. Troubles at the Tap The Washington Post 1973 A-20
2. Revisions to the 1962 Drinking Water Standards;Hartung;Willing Water,1973
3. Organic Pollutants in Water;Croll;Jour. Water Treat. Exam.,1972
4. Collins , R. P. Characterization of Taste and Odors in Water Supplies Wtr. Pollution Cont. Res. Ser. 16040 D & H 1971