Oppenheim, A. V., Willsky, A. S., & Nawab, S. H. (1997). Signals & systems (2nd ed.). Prentice Hall ; PHI Learining.
芝加哥风格引文Oppenheim, Alan V., Alan S. Willsky, 与 Syed Hamid Nawab. Signals & Systems. 2nd ed. Upper Saddle River, N.J. : New Delhi: Prentice Hall ; PHI Learining, 1997.
MLA引文Oppenheim, Alan V., et al. Signals & Systems. 2nd ed. Prentice Hall ; PHI Learining, 1997.
警告：这些引文格式不一定是100％准确.