INTERNATIONAL ELECTROTECHNICAL COMMISSION. (2002). BASIC AND SAFETY PRINCIPLES FOR MAN-MACHINE INTERFACE,MARKETING AND IDENTIFICATION (6TH.). IEC.
Cita Chicago (17th ed.)INTERNATIONAL ELECTROTECHNICAL COMMISSION. BASIC AND SAFETY PRINCIPLES FOR MAN-MACHINE INTERFACE,MARKETING AND IDENTIFICATION. 6TH. GENEVA: IEC, 2002.
Cita MLA (9th ed.)INTERNATIONAL ELECTROTECHNICAL COMMISSION. BASIC AND SAFETY PRINCIPLES FOR MAN-MACHINE INTERFACE,MARKETING AND IDENTIFICATION. 6TH. IEC, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.