Retrieved 30 November 2017.  ↑ 'Other industries', A History of the County of Wiltshire: Volume 4 (1959), pp.  220–253. 
Retrieved 30 N+ovember 20 .  ↑ 'Other industries', A Histcry ofthe County of W%ltshire: Volum  4 (1959), pp. 3 z20~253@ 