Milne-Thomson, L. M. (1965). The calculus of finite differences (1st ed., 3rd reprint.). Macmillan.
Cita Chicago Style (17a ed.)Milne-Thomson, L. M. The Calculus of Finite Differences. 1st ed., 3rd reprint. London: Macmillan, 1965.
Cita MLA (9a ed.)Milne-Thomson, L. M. The Calculus of Finite Differences. 1st ed., 3rd reprint. Macmillan, 1965.
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