?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=J.&rft.aulast=Veenstra&rft.au=Veenstra%2C+J.&rft.degree=Master&rft.date=2009&rft.title=Water+and+sustainability+in+Arag%C3%B3n%2C+Spain