Publication Details (including relevant citation information): Abo-State, M., El-Shahat, M. F and El-Khatat, A. M.R., 2005.Enumeration of total pathogenic bacteria in surface and groundwater of urban and rural zones of El-Giza Governorate. Isotope and Radiation research, 37 (5), 1303-1318. Sadek, M. A., Salem, W. M., El-Khatat, A. R. and El-Shahat, M. F., 2006. Environmental Evaluation of the Water Resources in El-Haram Area and Surroundings Using Isotopic Techniques and Biogeochemistry. Annals of the Geograpgical survey of Egypt, 28, 361-381. El Shahat, M.F., Sadek, M. A., Salem, W. M. and El-Khatat, A. R. , 2008. Isotopic and Hydrochemical Investigation of Damietta Branch of The River Nile, Egypt. Isotope and Radiation research (in press). Abo-State, M., and El-Khatat, A. M.R., 2008. Prevalence and Prediction of Pathogenic Bacteria in Damietta Branch of Nile River and its Surrounding Groundwater. Isotope and Radiation research (in press).