Cita APA (7th ed.)
Oppenheim, A. V., Willsky, A. S., & Nawab, S. H. (1997). Signals & systems (2nd ed.). Prentice Hall.
Cita Chicago (17th ed.)
Oppenheim, Alan V., Alan S. Willsky, i Syed Hamid Nawab. Signals & Systems. 2nd ed. Upper Saddle River, N.J. ; New Delhi: Prentice Hall, 1997.
Cita MLA (9th ed.)
Oppenheim, Alan V., et al. Signals & Systems. 2nd ed. Prentice Hall, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.