Spiegel, M. R. (1971). Schaum's outline of theory and problems of calculus of finite differences and difference equations: Schaum's outline of theory and problems of calculus of finite differences and difference equations (10. izd.). New York: McGraw-Hill.
Chicago stil citiranjaSpiegel, Murray R. Schaum's outline of theory and problems of calculus of finite differences and difference equations: Schaum's outline of theory and problems of calculus of finite differences and difference equations. 10. izd. New York: McGraw-Hill, 1971.
MLA stil citiranjaSpiegel, Murray R. Schaum's outline of theory and problems of calculus of finite differences and difference equations: Schaum's outline of theory and problems of calculus of finite differences and difference equations. 10. izd. New York: McGraw-Hill, 1971.