Boyd, James I.C. (1970) [1965]. Narrow Gauge Railways in Mid-Wales. The British Narrow Gauge Railway (2nd ed.). Lingfield, Surrey: The Oakwood Press. ISBN 978-0-85361-024-3. OCLC 499283322. No.3.
Boyd, James I.C. (1970) [1965]. Narrow Gauge Railways in Mid-Wales. The British Narrow Gauge Railway (2nd ed.). Lingfield, Surrey: The Oakwood Press. ISBN 978-0-85361-024-3. OCLC 499283322. No.3.