1. Carbonate deposits in Ganga Plain;Aggarwal,1992
2. Global environment: water, air and geochemical cycles;Berner,1996
3. Morphology, genesis and classification of salt-affected soils;Bhargava,1982
4. Characteristics and genesis of some sodic soils in the Indo-Gangetic plains;Bhargava;J. Indian Soc. Soil Sci.,1981
5. Map of India, Salt affected soils;Bhumbla,1975