TY  - RPRT
TI  - Letter Circular 807: home heating problems (superseding Letter Circular 702)
PY  - 1945
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - LCIRC 807r1945
DO  - 10.6028/NBS.LCIRC.807r1945
ER  -