APA (7th ed.) Citation

Parks, T. W., & Burrus, C. S. (1987). Digital filter design. Wiley.

Chicago Style (17th ed.) Citation

Parks, T. W., and C. S. Burrus. Digital Filter Design. New York: Wiley, 1987.

MLA (9th ed.) Citation

Parks, T. W., and C. S. Burrus. Digital Filter Design. Wiley, 1987.