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  E-mail Message: I thought you might be interested in this item at http://www.worldcat.org/oclc/67786721 Title: On-farm rice variability and change in Sierra Leone : farmers' perceptions of semi-weed types Author: Catherine Longley Publisher: London : Overseas Development Institute, 1999. ISBN/ISSN: 0850034272 9780850034271 OCLC:67786721

  
  

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On-farm rice variability and change in Sierra Leone : farmers' perceptions of semi-weed types