?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=S+M&rft.au=Swinton%2C+S+M&rft.aulast=Swinton&rft.isbn=0-85199-828-3&rft.date=2005&rft.title=Towards+comprehensive+approaches+in+assessing+NRM+impacts%3A+what+we+know+and+what+we+need+to+know&rft.tpages=382&rft.btitle=Natural+resource+management+in+agriculture%3A+methods+for+assessing+economic+and+environmental+impacts&rft.genre=bookitem