APA (7th ed.) Citation

Gabel, R. A., & Roberts, R. A. (1987). Signals and linear systems (3rd ed.). Wiley.

Chicago Style (17th ed.) Citation

Gabel, Robert A., and Richard A. Roberts. Signals and Linear Systems. 3rd ed. New York: Wiley, 1987.

MLA (8th ed.) Citation

Gabel, Robert A., and Richard A. Roberts. Signals and Linear Systems. 3rd ed. Wiley, 1987.