Reed, P. J. T. (February 1953). White, D. E. (ed.). The Locomotives of the Great Western Railway, Part 2: Broad Gauge. Kenilworth: RCTS. p. B24. ISBN0-901115-32-0. OCLC650490992. {{cite book}}: ISBN / Date incompatibility (help)
Waters, Laurence (1999). The Great Western Broad Gauge. Hersham: Ian Allan Publishing. ISBN0-7110-2634-3.