Headley, J. H. (1990). Linear Programming. McGraw-Hill.
Cita Chicago (17th ed.)Headley, J. H. Linear Programming. London: McGraw-Hill, 1990.
Cita MLA (9th ed.)Headley, J. H. Linear Programming. McGraw-Hill, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.