Berkmuller, Klaus. <br/><br/>
World conservation strategy :  A programme for youth manual for youth environmental projects / 
Berkmuller, Klaus. 
 - Switzerland:  1986. 
 - 75p.; 
 - Education, training and awareness,  no.1 .
<br/><br/><label>ISBN: </label>2880329167 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environment conservation