| Tel-251-11-446-33-21 |
| Fax-251-11-446-33-26 |
| E-mail:geology.institute@telecom.net.et |
| P.O.Box-2302 |
Addis Ababa Ethiopia |
| Tel-251-11-446-33-25,251-11-446-33-20 |
| Fax-251-11-446-33-26 |
| E-mail:geology.institute.@telecom.net.et |
| P.O.Box-2302 |
Addis Ababa Ethiopia |
| Tel-251-11-446-33-29 |
| Fax-251-11-446-33-26 |
| E-mail:survey@telecom.net.et |
| P.O.Box-2302 |
Addis Ababa Ethiopia |