APA (7th ed.) Citation

El-Gamal, H. (2005). Environmental tracers in groundwater as tools to study hydrological questions in arid regions.

Chicago Style (17th ed.) Citation

El-Gamal, Hany. Environmental Tracers in Groundwater as Tools to Study Hydrological Questions in Arid Regions. 2005.

MLA (9th ed.) Citation

El-Gamal, Hany. Environmental Tracers in Groundwater as Tools to Study Hydrological Questions in Arid Regions. 2005.

Warning: These citations may not always be 100% accurate.