Cite
APA Citation
Institution,, B. S. (1977). Detail specification for solder-sealed quartz crystal units for oscillator applications. AA, CX and BC/1 enclosures, 50 to 125 MHz frequency range. Fifth overtone thickness-shear mode, AT-cut, for operation over narrow temperature ranges (temperature controlled). Full assessment level.. London : British Standards Institution. http://access.bl.uk/ark:/81055/vdc_100104987948.0x000001