TY  - GEN
AU  - Langley Billy C
TI  - Heat pump technology
SN  - 0130339652
AV  - TJ262 
U1  - 621.402/5 
PY  - 2002///
CY  - Upper Saddle River, N.J.
PB  - Prentice Hall
KW  - Heat pumps
N1  - Includes index
ER  -