Geary, R. C., & Spencer, J. E. (1973). Elements of linear programming, with economic applications (2nd ed.). Griffin.
Cita Chicago (17th ed.)Geary, Robert Charles, i John Ervine Spencer. Elements of Linear Programming, with Economic Applications. 2nd ed. London: Griffin, 1973.
Cita MLA (9th ed.)Geary, Robert Charles, i John Ervine Spencer. Elements of Linear Programming, with Economic Applications. 2nd ed. Griffin, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.