(1996). International standards IEC 617-9: graphical symbols for diagrams: International standards IEC 617-9: graphical symbols for diagrams : TELECOMMUNICATIONS: SWITCHING AND PERIPHERAL EQUIPEMENT. PART 9 (2. izd.). Geneve: Bureau Central de la Commission Electrotechnique Internationale.
Chicago stil citiranjaInternational standards IEC 617-9: graphical symbols for diagrams: International standards IEC 617-9: graphical symbols for diagrams : TELECOMMUNICATIONS: SWITCHING AND PERIPHERAL EQUIPEMENT. PART 9. 2. izd. Geneve: Bureau Central de la Commission Electrotechnique Internationale, 1996.
MLA stil citiranjaInternational standards IEC 617-9: graphical symbols for diagrams: International standards IEC 617-9: graphical symbols for diagrams : TELECOMMUNICATIONS: SWITCHING AND PERIPHERAL EQUIPEMENT. PART 9. 2. izd. Geneve: Bureau Central de la Commission Electrotechnique Internationale, 1996.