- Author: Butcher Ken, Littlefair P. J
- Language: English
- Year: 2006
- Author: Butcher Ken, Day Tony, Jones Phil
- Language: English
- Year: 2009
Biomass heating
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- Author: Butcher Ken, Carwardine Helen, McClory Mark, Ratcliffe Martin S
- Language: English
- Year: 2007
- Author: Butcher Ken, Parsloe C
- Language: English
- Year: 2007
- Author: Butcher Tony, Maslakowski Mark
- Language: English
- Year: 2000
- Author: Matt Butcher Larry Garfield John Albin Wilkins Matt Farina Ken Rickard Greg Dunlap
- Language: English
- Year: 2010
- Author: David Butcher Martin Clarke (auth.)
- Language: English
- Year: 2001
- Author: David Butcher Martin Clarke (auth.)
- Language: English
- Year: 2008
