Del Val, J. D. (1972). Introductory linear programming for high school.
Cita Chicago (17th ed.)Del Val, Jesus D. Introductory Linear Programming for High School. 1972.
Cita MLA (9th ed.)Del Val, Jesus D. Introductory Linear Programming for High School. 1972.
Atenció: Aquestes cites poden no estar 100% correctes.