International Board for Soil Research and Management (IBSRAM) <br/><br/>
Organic-matter management and tillage in humid and subhumid Africa : proceedings of the Third Regional Workshop of an AFRICALAND Programme held at Antananarivo, Madagascar 9-15 January 1990 

 -  IBSRAM,  1996 
<br/><br/><label>Source: </label> 1999-07-27