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Lua i Stíl Chicago (17ú heag.)Singh, V.P, Keith W. Hipel, A. IAn McLeod, U.S Panu, agus Liping Fang. Stochastic and Statistical Methods in Hydrology and Environmental Engineering. Dordrecht: Kluwer Academic Publishers, 1994.
Lua MLA (9ú heag.)Singh, V.P, et al. Stochastic and Statistical Methods in Hydrology and Environmental Engineering. Kluwer Academic Publishers, 1994.
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