TY  - RPRT
TI  - Letter Circular 695: list of commercial standards (supersedes Letter Circular 691)
PY  - 1942
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - LCIRC 695r1942
DO  - 10.6028/NBS.LCIRC.695r1942
ER  -