TY  - BOOK
AU  - Welch 
AU  - Butcher, Ken
AU  - Carwardide, Helen
TI  - Refrigeration : CIBSE knowledge series : KS13 
SN  - 9781903287927 
U1  - 621.56 WEL 2008 
PY  - 0000///[year of publication not identified]
CY  - London
PB  - The Chartered Institution of Building Services Engineers.
KW  - Refrigeration and refrigerating machinery
N1  - Include bibliographical references
ER  -