Ackoff, R. L. (1968). Fundamentals of operations research. Wiley eastern.
Lua i Stíl Chicago (17ú heag.)Ackoff, Russell L. Fundamentals of Operations Research. Delhi: Wiley eastern, 1968.
Lua MLA (9ú heag.)Ackoff, Russell L. Fundamentals of Operations Research. Wiley eastern, 1968.
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