APA استشهاد

Gabel, R. A., & Roberts, R. A. (1973). Signals and linear systems. John Wiley.

استشهاد بنمط شيكاغو

Gabel, Robert A., و Richards A. Roberts. Signals and Linear Systems. New York: John Wiley, 1973.

MLA استشهاد

Gabel, Robert A., و Richards A. Roberts. Signals and Linear Systems. John Wiley, 1973.