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1LEABHARFoilsithe / Cruthaithe 1988“…Engineering Council (Great Britain)…”
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2LEABHARFoilsithe / Cruthaithe 1986“…Engineering Council (Great Britain)…”
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3LEABHARde réir Smithers, Alan (Alan George), 1938-“…Engineering Council (Great Britain)…”
Foilsithe / Cruthaithe 1991