APA (7th ed.) Citation

Levy, H. (1961). Finite difference equations ([1st American ed.].). Macmillan.

Chicago Style (17th ed.) Citation

Levy, H. Finite Difference Equations. [1st American ed.]. New York: Macmillan, 1961.

MLA (9th ed.) Citation

Levy, H. Finite Difference Equations. [1st American ed.]. Macmillan, 1961.