TY  - RPRT
TI  - Circular of the Bureau of Standards no. 480: fundamental techniques in the frequency adjustment of quartz crystals
AU  - Sogn, Leland T
AU  - Barclay, Catherine
PY  - 1949
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 480
DO  - 10.6028/NBS.CIRC.480
ER  -