TY  - RPRT
TI  - Letter Circular 16 (Communication B513): services available at the Bureau of Standards gage laboratory
PY  - 1920
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - LCIRC 16r1920
DO  - 10.6028/NBS.LCIRC.16r1920
ER  -