HADLEY, G. (1975). Linear Programming G. Hadley. Addison-Wesley.
Lua i Stíl Chicago (17ú heag.)HADLEY, G. Linear Programming G. Hadley. Addison-Wesley, 1975.
Lua MLA (8ú heag.)HADLEY, G. Linear Programming G. Hadley. Addison-Wesley, 1975.
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