TY  - BOOK
AU  - Langley, Billy C.
TI  - Comfort heating
SN  - 0-87909-091-x
U1  - 697.07 
PY  - 1978///
CY  - Reston
PB  - Prentice -Hall
KW  - Heating - equipment and supplies
N1  - Includes index
ER  -