?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Hughes%2C+T.C.&rft.aulast=Hughes&rft.aufirst=T.C.&rft.date=1982&rft.title=A+discrete+programming+optimization+strategy+for+water+supply+planning+problems+with+interzonal+transfers.&rft.btitle=Environmental+systems+analysis+and+management&rft.genre=bookitem