Quantification of the effect of erosion on soil productivity in an international context / 
Frank R. Rijsberman andM. Gordon Wolman, editors. 
 - [Stockholm] :  IFIAS],  1984. 
 - xvii, 157 p. :  ill. ;  29 cm. 
<br/><br/><label>LCCN: </label>10250110 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crops and soil.<br/>Soil erosion.