TY  - RPRT
TI  - Letter Circular 840: home heating problems: list of publications and articles (superseding Letter Circular 807)
PY  - 1946
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - LCIRC 840r1946
DO  - 10.6028/NBS.LCIRC.840r1946
ER  -