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    Standards for compaction of dense roadbase macadam

    Powell, W. D. / Leech, D. | TIBKAT | 1982

    French experience with grave-bitume a dense bituminous road base

    Hingley, C. E. / Peattie, K. R. / Powell, W. D. | TIBKAT | 1976

    Use of a Gantry Robot in the Assay of Radioactive Materials

    Phelan, P. F. / Powell, W. D. / Staley, H. C. et al. | British Library Online Contents | 1990

    The structural design of bituminous roads

    Transportation and Road Research Laboratory | TIBKAT | 1984
    Beteiligte: Powell, W. D.