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	1.	Image from Google Jackets	Ammonia refrigerant in buildings: minimising the hazards. by Butler, D.J.G Building Research Establishment Hall, D.J Series: Information Paper ; 18/00 Publication details: London CRC Ltd 2000 Availability: Items available for loan: London (1)Collection, call number: RESERVE SHELF 323.
	2.	Image from Google Jackets	Air as a refrigerant in air conditioning systems in buildings. by Butler, D.J.G Building Research Establishment Gigiel, A.J Russell, S.L Series: BRE Information Paper ; 21/00Language: ENG Publication details: London CRC Ltd 2000 Availability: Items available for loan: London (1)Collection, call number: SHELF 323.
	3.	Image from Google Jackets	Performance of air-conditioning systems with alternative refrigerants. by Butler, D.J.G Building Research Establishment Series: BRE Information Paper ; IP 6/98Language: English Publication details: London Construction Research Communications Ltd 1998 Availability: Items available for loan: London (1)Collection, call number: RESERVE SHELF 323.
	4.	Image from Google Jackets	Phase-out of CFCs and HCFCs: options for owners and operators of air-conditioning systems. by Butler, D.J.G Building Research Establishment Series: BRE Information Paper ; 14/95Language: English Publication details: Garston, Watford Building Research Establishment 1995 Availability: Items available for loan: London (1)Collection, call number: SHELF 323.
	5.	Image from Google Jackets	Safety and environmental requirements of new refrigerants. by Butler, D.J.G Building Research Establishment Series: BRE Information Paper ; 16/95Language: English Publication details: Garston, Watford Building Research Establishment 1995 Availability: Items available for loan: London (1)Collection, call number: SHELF 323.
	6.	Image from Google Jackets	Minimising refrigerant emissions from air conditioning systems in buildings. by Butler, D.J.G Building Research Establishment Series: BRE Information Paper ; 1/94Language: English Publication details: Garston, Watford Building Research Establishment 1994 Availability: Items available for loan: London (1)Collection, call number: SHELF 323.
	7.	Image from Google Jackets	Phase-out of CFCs: guidance for owners and operators of air conditioning systems. by Butler, D.J.G Building Research Establishment Series: BRE Information Paper ; 8/93Language: English Publication details: Garston, Watford Building Research Establishment 1993 Availability: Items available for loan: London (1)Collection, call number: SHELF 323.
	8.	Image from Google Jackets	Air-conditioning - alternatives to CFCs and HCFCs by Butler, D.J.G Series: Property Journal ; 17(4) August 1992, 11-14(4)Language: English Publication details: 1992 Availability: Items available for loan: London (1)Collection, call number: ABS46903.
	9.	Image from Google Jackets	CFCs and the building industry by Butler, D.J.G Series: BRE Information Paper ; 23/89Language: English Publication details: Garston,Watford Building Research Establishment 1989 Availability: Items available for loan: London (1)Collection, call number: P546.73.
	10.	Image from Google Jackets	The cost-effectiveness of heat pumps in highly insulated dwellings: a assessment by Butler, D.J.G Series: Information Paper ; 7/85Language: English Publication details: Garston, Watford Building Research Establishment 1985 Availability: Items available for loan: London (1)Collection, call number: BOXED SET.