Geochemistry of water resource and pollution problems in helwan area egypt
By: al-Sayyid, Majdi Husni; Shawqi, Husam Ahmad; Abd al-Muttalib, Muhammad Sabri A.. Egyptian Journal of Desert Research. Vol. 54, no. 2 (2004), pp.259-289, 31 p.
Subjects: Egypt; Helwan; Pollution; Water