Asia Soil Conservation on Network   <br/><br/>
Indigenous conservation farming practise: report of the joint ASCON/Commonwealth workshop in Goroka, Papua New Guinea, 3-7 December 1990  (Book) 

 - Jakarta  ASOCON  1990 
 - 77 p.  30 cm. 
<br/><br/><label>Universal Decimal Class. No.: </label>631.459:631.61:631.11(047) ASI  / 5537