Citazione APA

Spiegel, M. R. (1971). Schaum's outline of theory and problems of calculus of finite differences and difference equations (23.).

Stile di citazione Chicago

Spiegel, 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.

Citazione MLA

Spiegel, Murray R. Schaum's Outline of Theory and Problems of Calculus of Finite Differences and Difference Equations. 23. 1971.