Beckett, Derrick; Paul Hugh Marsh (1974). Timber. Surrey University Press. p. 156. ISBN 978-0-903384-02-5. 978-0-903384-02-5
Wellings, Fred (2006). British Housebuilders: History and Analysis. Blackwell Publishing. p. 43. ISBN 978-1-4051-4918-1. 978-1-4051-4918-1
Baggott, Rob (1995). Pressure Groups Today. Manchester University Press ND. pp. 202–204. ISBN 978-0-7190-3579-1. 978-0-7190-3579-1
Parnham, Phil; Chris Rispin (2001). Residential Property Appraisal (3rd illustrated ed.). Taylor & Francis. pp. 300–302. ISBN 978-0-419-22570-6. 978-0-419-22570-6