?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=K+P+C&rft.au=Rao%2C+K+P+C&rft.aulast=Rao&rft.atitle=Changes+in+dry+land+agriculture+in+the+semi-arid+tropics+of+India%2C+1975%E2%80%932004&rft.title=European+Journal+of+Development+Research&rft.date=2008&rft.volume=20&rft.pages=562-578&rft.issue=4&rft.genre=article