Bertram F. E. Keeling
A Preliminary Report of The Geodetic Triangulation of The Nile Valley to June, 1909 - Cairo National Printing Department 1909 - 9 28 cm
1909
English
General
A Preliminary Report of The Geodetic Triangulation of The Nile Valley to June, 1909 - Cairo National Printing Department 1909 - 9 28 cm
1909
English
General