Spiegel, M. R. (1971). Schaum's outline of theory and problems of calculus of finite differences and difference equations (23.).
Citação norma ChicagoSpiegel, Murray R. Schaum's Outline of Theory and Problems of Calculus of Finite Differences and Difference Equations. 23. McGraw-Hill book Co, Inc, New York, 1971.
Citação norma MLASpiegel, Murray R. Schaum's Outline of Theory and Problems of Calculus of Finite Differences and Difference Equations. 23. 1971.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.