TY  - RPRT
TI  - Annual report of the Director Bureau of Standards to the Secretary of Commerce for the fiscal year ended June 30, 1919 
PY  - 1919
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NBS MP 40
DO  - 10.6028/NBS.MP.40
ER  -