Cite
HARVARD Citation
Institution,, B. (1987) Specification for harmonized system of quality assessment for electronic components. Family specification: digital integrated TTL low power SCHOTTKY circuits, series 54LS, 64LS, 74LS, 84LS.. [Online]. London : British Standards Institution. Available from: http://access.bl.uk/ark:/81055/vdc_100104996630.0x000001