APA (7th ed.) Citation
Oppenheim, A. V., & Schafer,Ronald W. (1975). Digital signal processing. Prentice-Hall.
Chicago Style (17th ed.) Citation
Oppenheim, Alan V., and Schafer,Ronald W. Digital Signal Processing. Englewood Cliffs, N.J.; New Delhi: Prentice-Hall, 1975.
MLA (9th ed.) Citation
Oppenheim, Alan V., and Schafer,Ronald W. Digital Signal Processing. Prentice-Hall, 1975.
Warning: These citations may not always be 100% accurate.