APA (7th ed.) Citation
Proakis, J. G., & Manolakis, D. G. (1989). Introduction to digital signal processing. Macmillan Publishing Co..
Chicago Style (17th ed.) Citation
Proakis, J. G., and D. G. Manolakis. Introduction to Digital Signal Processing. New York: Macmillan Publishing Co., 1989.
MLA (9th ed.) Citation
Proakis, J. G., and D. G. Manolakis. Introduction to Digital Signal Processing. Macmillan Publishing Co., 1989.
Warning: These citations may not always be 100% accurate.