1. Acid rain in south central Louisiana;Allen,1983
2. Analysis and assessment of precipitation chemistry at Caribou, Maine;Artz;Water Air Soil Pollut.,1986
3. NADP Instruction Manual: Site Operation: National Atmospheric Deposition Program;Bigelow,1982
4. Instruction Manual: NADP/NTN Site Selection and Installation: National Atmospheric Deposition Program;Bigelow,1984
5. Seasonal variations in the chemistry of precipitation of the United States;Bowersox,1985