一般注記 |
His Thermal shrinkage cracking of some Ontario pavements, 1969: t.p. (R. C. G. Haas) p. 2 of cover (faculty, Civil Engin. Dept., Univ. of Waterloo) His Pavement management systems, c1978: t.p. (Ralph Haas) Hudson, W. R. Pavement management system development, 1979: t.p. (R. Haas; Austin Res. Engineers, inc., Texas) acknowl. (Ralph Haas) EDSRC:Modern pavement management / Ralph Haas, W. Ronald Hudson, John Zaniewski(Krieger Publishing, 1994)
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