Weischet Wolfgang <br/><br/>
The Persisting ecological constraints of tropical agriculture.  
/ Weischet Wolfgang  
. - New York  : Longman, cop. 1993
. - xiv-319 p.  ; 24 cm. 
<br/><br/>Bibliogr.Index. 
<br/><br/><label>ISBN: </label>9780582056923 0582056923 
<br/><br/><label>Universal Decimal Class. No.: </label>631.95.