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APA Citation
Institution,, B. S. (2021). Expert Commentary for BS EN IEC 61439-1:2021. Low-voltage switchgear and controlgear assemblies.. London : British Standards Institution. http://access.bl.uk/ark:/81055/vdc_100120948594.0x000001
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Institution,, B. S. (2021). Expert Commentary for BS EN IEC 61439-1:2021. Low-voltage switchgear and controlgear assemblies.. London : British Standards Institution. http://access.bl.uk/ark:/81055/vdc_100120948594.0x000001