Kimball, R. L. (1997). Mathematical models: Preliminary edition. Prentice Hall.
Cita Chicago (17th ed.)Kimball, Robert Lee. Mathematical Models: Preliminary Edition. New Jersey: Prentice Hall, 1997.
Cita MLA (9th ed.)Kimball, Robert Lee. Mathematical Models: Preliminary Edition. Prentice Hall, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.