Kitetu, Jackson John. <br/><br/>
Assessing the environmental impact of sand harvesting in seasonally-dry Kenyan rivers / 
Jackson John Kitetu. 
 - 1st  ed. 
 - xiv, 303 leaves. 
<br/><br/>These (Ph. D) - Lancaster University, 1997. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sand and gravel industry--Environmental aspects--Kenya.