Somerville, Stuart, <br/><br/>
Domestic gas safety on site guide.  part 1 / 
original author and graphics: Stuart Somerville, Stuart Callan and Peter Gordon ; amendment 2017 by Chris Long. 
 - Dunstable :  Certsure LLP,  [December 2017] 
 - 1 volume :  illustrations (colour) ;  21 cm 
<br/><br/> Title from cover.  Multiple paginations  "Version 7." 
<br/><br/><label>ISBN: </label>9781906091873 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gas appliances--Safety regulations--Great Britain.<br/>Gas appliances--Safety measures.--Great Britain<br/>Gas--Law and legislation--Great Britain.