APA (7th ed.) Citation

Haykin, S., & Van Veen, B. (1999). Signals and systems. John Wiely & Sons.

Chicago Style (17th ed.) Citation

Haykin, Simon, and Barry Van Veen. Signals and Systems. New York: John Wiely & Sons, 1999.

MLA (9th ed.) Citation

Haykin, Simon, and Barry Van Veen. Signals and Systems. John Wiely & Sons, 1999.