?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Cervigni&rft.aufirst=Raffaello&rft.au=Cervigni%2C+Raffaello&rft.date=1998&rft.inst=University+of+London&rft.degree=Doctoral&rft.title=Land+use%2C+national+development+and+global+welfare%3A+the+economics+of+biodiversity's+conservation+and+sustainable+use&rft.tpages=371