APA
(1978). DIN 45635-12:1978-Measurement Of Noise Emitted By Machines; Airborne Noise Measurement, Enveloping Surface Method; Electrical Switchgear And Control Gear. Berlin: German Institute of Standarization.
Chicago
1978. DIN 45635-12:1978-Measurement Of Noise Emitted By Machines; Airborne Noise Measurement, Enveloping Surface Method; Electrical Switchgear And Control Gear. Berlin: German Institute of Standarization.
Harvard
(1978). DIN 45635-12:1978-Measurement Of Noise Emitted By Machines; Airborne Noise Measurement, Enveloping Surface Method; Electrical Switchgear And Control Gear. Berlin: German Institute of Standarization.
MLA
DIN 45635-12:1978-Measurement Of Noise Emitted By Machines; Airborne Noise Measurement, Enveloping Surface Method; Electrical Switchgear And Control Gear. Berlin: German Institute of Standarization. 1978.