TY  - RPRT
TI  - Letter Circular 479: sources of information on the properties of metals and alloys (books) (superseding Letter Circular 257)
PY  - 1936
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - LCIRC 479
DO  - 10.6028/NBS.LCIRC.479
ER  -