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APA Citation
Institution,, B. S. (1985). Harmonized blank detail specification for lead screw actuated non-wirewound preset potentiometers. Square form, container sealed, actuating device insulated from resistive element, slipping clutch at each end of travel, rigid terminations. Assessment level S.. London : British Standards Institution. http://access.bl.uk/ark:/81055/vdc_100103752684.0x000001