Cita APA (7a ed.)

Levy, H., & Lessman, F. (1992). Finite difference equations ([1st pub.].). Dover.

Cita Chicago Style (17a ed.)

Levy, Hyman, y F. Lessman. Finite Difference Equations. [1st pub.]. New York: Dover, 1992.

Cita MLA (9a ed.)

Levy, Hyman, y F. Lessman. Finite Difference Equations. [1st pub.]. Dover, 1992.