TY  - BOOK
AU  - Swindells, J F (Ed.)
AU  - Hermach, F L (Ed.)
TI  - Precision measurement and calibration 
PY  - 1968///
CY  - Washington: 
PB  - US Government Printing Office,    
KW  - Science
N1  - Vol.2 Selected NBS papers on temperature
Vol. 3 Selected NBS papers on electricity-Low frequency
ER  -