Dangos 1 - 1 canlyniadau o 1 ar gyfer chwilio 'Krell, Karl', amser ymholiad: 0.01e Mireinio'r Canlyniadau
  1. 1
    Costs and benefits of general speed limits : (maximum and minimum speeds) : report of the thirty-seventh Round Table on Transport Economics, held in Paris on 24th and 25th February, 1977 /
    Trafodyn Cynhadledd Llyfr
    gan Krell, Karl
    Cyhoeddwyd 1978
    Ychwanegu at ffefrynnau
    Wedi'i Gadw mewn:
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