Socio-economic impacts of sand and gravel mining activities in Nsugbe, Anambra state, Nigeria.
| Autor: | ONWUKA, S. U.1, DULUORA, J. O.1 dazdjcardinal@yahoo.com, AMAECHI, I. E.1 |
|---|---|
| Zdroj: | Albanian Journal of Agricultural Sciences. 2013, Vol. 12 Issue 2, p229-235. 7p. |
| Databáze: | Academic Search Ultimate |
| Externí odkaz: |
|