TY  - RPRT
TI  - Evaluation of energy-conserving modifications for water heaters 
AU  - Palla, Robert L
PY  - 1979
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 79-1783
DO  - 10.6028/NBS.IR.79-1783
ER  -