Cite
APA Citation
Institution,, B. S. (1982). Specification for tungsten filament lamps for general service (with lives of 2000 h). London : British Standards Institution. http://access.bl.uk/ark:/81055/vdc_100103326093.0x000001
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Institution,, B. S. (1982). Specification for tungsten filament lamps for general service (with lives of 2000 h). London : British Standards Institution. http://access.bl.uk/ark:/81055/vdc_100103326093.0x000001