R.T. Griffiths (Griffiths, R.T. / R. T. Griffiths / Griffiths, R. T.)

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  Clec a Chân
  by R. T. Griffiths
  Softcover, Cymdeithas Lyfrau Ceredigion, ISBN 0948930268 (0-948930-26-8)
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  Hydraulic Servo Systems:Analysis and Design: Analysis and Design
  by Marcel Guillon
  Hardcover, Butterworths, ISBN 0408221003 (0-408-22100-3)
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  Socialist Parties and the Question of Europe in the 1950's
  by R.T. Griffiths
  Hardcover, Brill Academic Pub, ISBN 9004097341 (90-04-09734-1)
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  Tests at M= 1.82 on an Engine Installation with Boundary-Layer Diverter for a Slender Gothic Wing
  by R.T. Griffiths
  Hardcover, H.M. Stationery Off, ISBN 0114701865 (0-11-470186-5)