1. Hot springs of the Yellowstone National Park;Allen;Carnegie Inst. Wash. Publ.,1936
2. Standard Methods for the Examination of Water and Wastewater;American Public Health Association,1971
3. Geothermal Energy,1973
4. Gas Chromatographic identification of sulfur gases in soil atmospheres;Banwart;Soil Biol. Biochem.,1974
5. Contribution of chemoautotrophic bacteria to the acid thermal waters of the Geyser Springs group in The Yellowstone National Park;Brierly,1966