Template:Boyd-NGRP
Boyd, James I.C. (1950) [1949]. Narrow-gauge rails to Portmadoc; a historical survey of the Festiniog-Welsh Highland Railway and its ancillaries;. Tanglewood, South Godstone, Surrey: The Oakwood Press. OCLC 12129614.
Boyd, James I.C. (1950) [1949]. Narrow-gauge rails to Portmadoc; a historical survey of the Festiniog-Welsh Highland Railway and its ancillaries;. Tanglewood, South Godstone, Surrey: The Oakwood Press. OCLC 12129614.