TY  - BOOK
AU  - Johnson, W. H.
TI  - Central heating : questions and answers,
T2  - Questions and answers
SN  - 0408004592
PY  - 1980///[reprinted 1983]
CY  - London
PB  - Newnes Technical Books
KW  - HEATING FROM CENTRAL STATIONS
KW  - CENTRAL HEATING SYSTEMS
ER  -