VR Publications Ltd

year of pub­li­ca­ti­onISBNauthor(s)title
2004978-1-900013-22-2C Johnstone · M BowraGuide to Tightness Testing and Purging Small Natural Gas Installations
2005978-1-900013-86-4Les JohnstoneDomestic Electrical Installers Handbook
2000978-1-900013-89-5Michael Bowra · Chris JohnstoneDomestic Central Heating Training Pack
  ''978-1-900013-99-4Michael Bowra · Chris JohnstoneDomestic Natural Gas Handbook (Including Appliances)