APA-referens (7:e uppl.)

OPPENHEIN, A. V. (1997). SIGNALS AND SYSTEMS, 2ND ED. PHI.

Chicago-referens (17:e uppl.)

OPPENHEIN, A V. SIGNALS AND SYSTEMS, 2ND ED. New Delhi: PHI, 1997.

MLA-referens (9:e uppl.)

OPPENHEIN, A V. SIGNALS AND SYSTEMS, 2ND ED. PHI, 1997.