Underwood, R. T. (1995). Road engineering practice. South Melbourne: Macmillan Education Australia.
Chicago Stili AlıntıUnderwood, R. T. Road Engineering Practice. South Melbourne: Macmillan Education Australia, 1995.
MLA AlıntıUnderwood, R. T. Road Engineering Practice. South Melbourne: Macmillan Education Australia, 1995.
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