Widdowson, R.W.  <br/><br/>
Towards holistic agriculture: a scientific approach  (Book) 

 - Oxford  Pergamon  1987 
 - 187 p.  24 cm. 
<br/><br/><label>ISBN: </label>0080342116 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture ecology Organic farming
<br/><br/><label>Universal Decimal Class. No.: </label>630 WID  / 3865