1. Heats and free energies of formation of anhydrous carbonates of barium, strontium, and lead;Adami;U.S., Bur. Mines, Rept. Invest.,1966
2. Standard Methods for the Examination of Water, Sewage, and Industrial Wastes;American Public Health Association,1955
3. Official Methods of Analysis of the Association of Official Agricultural Chemists;Association of Official Agricultural Chemists,1965
4. Equipment for field measurement of electrochemical potentials;Back;U.S., Geol. Surv., Profess. Papers,1961
5. Field measurement of alkalinity and pH;Barnes;U.S., Geol. Surv., Water Supply Paper,1964