LEADER 00000nam 2200205 a 4500 001 18345347 003 UkHlHU 007 t 008 000 020 0951237330 040 UkHlHU 050 4 HE 663 Z7 D97 100 1 Lewis, M. J. T.|q(Michael Jonathan Taunton) 245 10 Sails on the Dwyryd :|bthe river transport of Ffestiniog slate. 260 Plas Tan y Bwlch :|bSnowden National Park Study Centre, |c1989. 300 116p. 650 0 Shipping|zWales|zDwyryd River|xHistory. 650 0 Slate industry|zWales, North|xHistory. 710 2 Snowden National Park Study Centre.
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