APA-viite

Oppenheim, A. V., Schafer, R. W., & Buck, J. R. (1989). Discrete-time signal processing. Prentice Hall, Pearson.

Chicago-tyylinen lähdeviittaus

Oppenheim, Alan V., Ronald W. Schafer, ja John R. Buck. Discrete-time Signal Processing. New Delhi: Prentice Hall, Pearson, 1989.

MLA-viite

Oppenheim, Alan V., et al. Discrete-time Signal Processing. Prentice Hall, Pearson, 1989.