Arid and semi-arid lands :  Sustable use and management developing conntries / 
R. Dennis Child ... [et al.] 
 - Morrilton, Arkansas :  Wirrack International,  1984. 
 - iv, 298 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographical references (p. 186-187)and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rangelands--Developing countries--Congresses.
<br/><br/><label>LC Class. No.: </label>S592.17  / A75 1984