http://www.helium.com/knowledge/79199-maximization-of-benefits-from-africas-ground-water-and-aquifers.xml Helium.com > Water & Oceanography > Maximization of benefits from Africa's ground water and aquifers en-us Copyright Helium.com Mon, 05 May 2008 19:39:55 GMT Mon, 05 May 2008 19:39:55 GMT