Barrow, Christopher J. <br/><br/>
Land degradation  development and breakdown of terrestrial environments 
C.J. Barrow 
 - Cambridge [England]  New York  Cambridge University Press  1991 
 - xvii, 295 p.  ill., maps  26 cm. 
<br/><br/>Includes bibliographical references (p. 261-285) and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nature--Effect of human beings on.<br/>Land degradation<br/>Pollution--Environmental aspects<br/>Soil conservation