?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=N+P&rft.au=Singh%2C+N+P&rft.aulast=Singh&rft.atitle=Quantifying+Economic+Impact+of+Climate+Change+on+Rice+in+Semiarid+Tropics+of+India%3A+using+Ricardian+Approach+for+the+State+of+Andhra+Pradesh+&rft.title=Asia+Pacific+Journal+on+Environment+and+Development&rft.date=2013&rft.volume=20&rft.pages=41-55&rft.genre=article