Gabel, R. A. (1987). Signals and linear systems. New York: Wiley.
Trích dẫn kiểu ChicagoGabel, Robert A. Signals and Linear Systems. New York: Wiley, 1987.
MLA引文Gabel, Robert A. Signals and Linear Systems. New York: Wiley, 1987.
警告：這些引文格式不一定是100％准確.