Gass, S. I. (1969). Linear programming: Methods and applications (3rd ed.). McGraw-Hill Book Company, Inc.
Lua i Stíl Chicago (17ú heag.)Gass, Saul I. Linear Programming: Methods and Applications. 3rd ed. New York: McGraw-Hill Book Company, Inc, 1969.
Lua MLA (9ú heag.)Gass, Saul I. Linear Programming: Methods and Applications. 3rd ed. McGraw-Hill Book Company, Inc, 1969.
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