Brown, Lester R. <br/><br/>
Soil erosion:   quite crisis in the world economy 

 - Washington, D.C:  Worldwatch Institute,  1984. 
 - 49p.:  ill.;  23cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil erosion<br/>Soil conservation
<br/><br/><label>LC Class. No.: </label>IRA S624.B76