TY  - RPRT
TI  - Letter Circular 808: standards and specifications for building and construction materials, fixtures, supplies, and equipment (superseding Letter Circular 619)
PY  - 1945
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - LCIRC 808r1945
DO  - 10.6028/NBS.LCIRC.808r1945
ER  -