1. Uranoorganic mineral association;Abdel-Gawad;Am. Mineralogist,1961
2. Solution Chemistry (of the actinides);Ahrland,1973
3. Reduction of uranium by natural organic substances;Andreyev;Geochem. Intl,1964
4. National Uranium Resource Evaluation;Annual Nure Report,1976
5. The Hydrolysis of Cations;Baes,1976