Gass, S. I. (1970). An illustrated guide to linear programming. McGraw-Hill.
Cita Chicago (17th ed.)Gass, Saul I. An Illustrated Guide to Linear Programming. New York: McGraw-Hill, 1970.
Cita MLA (9th ed.)Gass, Saul I. An Illustrated Guide to Linear Programming. McGraw-Hill, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.