APA-referens (7:e uppl.)

NAGRATH I J. (2012). SIGNALS AND SYSTEMS (2ND ED.). TATA MC GRAW HILL.

Chicago-referens (17:e uppl.)

NAGRATH I J. SIGNALS AND SYSTEMS. 2ND ED. NEW DELHI: TATA MC GRAW HILL, 2012.

MLA-referens (9:e uppl.)

NAGRATH I J. SIGNALS AND SYSTEMS. 2ND ED. TATA MC GRAW HILL, 2012.