Percy Phillips
The Discharge and Levels of The Nile and Rains of The Nile Basin in 1919 - Egypt Government Press 1926 - 88 28 - Physical Department 11 .
Ministry of Public Works, Egypt
1926
English
General
The Discharge and Levels of The Nile and Rains of The Nile Basin in 1919 - Egypt Government Press 1926 - 88 28 - Physical Department 11 .
Ministry of Public Works, Egypt
1926
English
General