Phillips, C. L., Parr, J. M., & Riskin, E. A. (2008). Signals, systems, and transforms (4th ed.). Pearson/Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Phillips, Charles L., John M. Parr, agus Eve A. Riskin. Signals, Systems, and Transforms. 4th ed. Upper Saddle River, N.J: Pearson/Prentice Hall, 2008.
Lua MLA (9ú heag.)Phillips, Charles L., et al. Signals, Systems, and Transforms. 4th ed. Pearson/Prentice Hall, 2008.
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