TY  - RPRT
TI  - Engineering - economic analysis of improved heat pump performance for minimum standards development 
AU  - Petersen, Stephen R
AU  - Barnes, Kimberly A
AU  - Kelly, George E
PY  - 1981
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 81-2241
DO  - 10.6028/NBS.IR.81-2241
ER  -