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Boyd, James I.C. (1988). Narrow Gauge Railways in South Caernarvonshire, Vol. 1. Blandford: The Oakwood Press. ISBN 0-85361-365-6.
Boyd, James I.C. (1988). Narrow Gauge Railways in South Caernarvonshire, Vol. 1. Blandford: The Oakwood Press. ISBN 0-85361-365-6.