Cite
MLA Citation
British Standards Institution,. Standard sheets for barrel thread for E14 and E27 lampholders with shade holder ring.. London : British Standards Institution, 2000. http://access.bl.uk/ark:/81055/vdc_100105044025.0x000001
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British Standards Institution,. Standard sheets for barrel thread for E14 and E27 lampholders with shade holder ring.. London : British Standards Institution, 2000. http://access.bl.uk/ark:/81055/vdc_100105044025.0x000001