Gaya APA

Oppenheim, A, V., Willsky, A, S. (1983). SIGNALS AND SYSTEMS SECOND EDITION . USA: Prentice Hall, Inc.

Gaya MLA

Oppenheim, Alan, V.., Willsky, Alan, S.. "SIGNALS AND SYSTEMS SECOND EDITION". USA: Prentice Hall, Inc, 1983. Text.