TY  - RPRT
TI  - Letter Circular 12 (Communication B466): procedure of tests and explanation of reports of munition and other limit gages
PY  - 1919
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - LCIRC 12r1919
DO  - 10.6028/NBS.LCIRC.12r1919
ER  -