Gass, S. I. (1975). Linear programming.-4th ed.: Methods and applications (4th ed.). McGraw-Hill.
Chicago Style aipamenaGass, Saul I. Linear Programming.-4th Ed.: Methods and Applications. 4th ed. New York: McGraw-Hill, 1975.
MLA aipamenaGass, Saul I. Linear Programming.-4th Ed.: Methods and Applications. 4th ed. McGraw-Hill, 1975.
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