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Boyd, James I.C. (1988) [1972]. Narrow Gauge Railways in South Caernarvonshire – Volume 1. Headington: The Oakwood Press. ISBN 978-0-85361-365-7. OCLC 20417464.
Boyd, James I.C. (1988) [1972]. Narrow Gauge Railways in South Caernarvonshire – Volume 1. Headington: The Oakwood Press. ISBN 978-0-85361-365-7. OCLC 20417464.