Gass, S. I. (1969). Linear programming: Methods and applications (3rd ed.). McGraw-Hill Book Company, Inc.
Cita Chicago (17th ed.)Gass, Saul I. Linear Programming: Methods and Applications. 3rd ed. New York: McGraw-Hill Book Company, Inc, 1969.
Cita MLA (9th ed.)Gass, Saul I. Linear Programming: Methods and Applications. 3rd ed. McGraw-Hill Book Company, Inc, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.