Cite
MLA Citation
British Standards Institution,. Specification for double-ended open-jawed spanners for B.A. hexagon sizes.. London : British Standards Institution, 1952. http://access.bl.uk/ark:/81055/vdc_100103574853.0x000001
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British Standards Institution,. Specification for double-ended open-jawed spanners for B.A. hexagon sizes.. London : British Standards Institution, 1952. http://access.bl.uk/ark:/81055/vdc_100103574853.0x000001