TY  - RPRT
TI  - Letter Circular 911: list of commercial standards (supersedes Letter Circular 890)
PY  - 1948
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - LCIRC 911r1948
DO  - 10.6028/NBS.LCIRC.911r1948
ER  -