TY  - RPRT
TI  - Letter Circular 761: solders and soldering (supersedes Letter Circular 701, 493 and343)
PY  - 1944
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - LCIRC 761
DO  - 10.6028/NBS.LCIRC.761
ER  -