Henrici, P. (1962). Discrete variable methods in ordinary differential equations. Wiley.
Cita Chicago (17th ed.)Henrici, Peter. Discrete Variable Methods in Ordinary Differential Equations. New York: Wiley, 1962.
Cita MLA (9th ed.)Henrici, Peter. Discrete Variable Methods in Ordinary Differential Equations. Wiley, 1962.
Atenció: Aquestes cites poden no estar 100% correctes.