Tropical grazing land ecosystems:   A state-of-knowledge report  
/ UNESCO 
 - Paris:   United Nations Education, Scientific and Cultural Organization,   1979 
 - 655p.  
 - Natural resources research   XVI .
<br/><br/><label>ISBN: </label>92-101611-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture 
<br/><br/><label>Subjects--Index Terms: </label>Human biology  Water resources 
<br/><br/><label>Universal Decimal Class. No.: </label>636.084.22   / L9