Spiegel, M. R. (1971). Schaum's outline of theory and problems of calculus of finite differences and difference equations. McGraw-Hill.
Chicago Style (17th ed.) CitationSpiegel, Murray R. Schaum's Outline of Theory and Problems of Calculus of Finite Differences and Difference Equations. New York ; London: McGraw-Hill, 1971.
MLA (9th ed.) CitationSpiegel, Murray R. Schaum's Outline of Theory and Problems of Calculus of Finite Differences and Difference Equations. McGraw-Hill, 1971.
Warning: These citations may not always be 100% accurate.