Nechaeva, N.T(ed). <br/><br/>
Rangeland ecology, management and productivity :  Teaching aids of the international training course / 
Nechaeva, N.T(ed). 
 - Moscow:  UNEP publications,  1981. 
 - 418p.; 
 - Collection of instructional materials of the international training course ,  vol.2 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology