National Cooperative Highway Research Program & ebrary, Inc. (1995). Interim guide for developing a state transportation research manual. National Academies Press.
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Dyfyniad Arddull Chicago
National Cooperative Highway Research Program and Inc ebrary. Interim Guide for Developing a State Transportation Research Manual. [S.l.]: National Academies Press, 1995.
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Dyfyniad MLA
National Cooperative Highway Research Program and Inc ebrary. Interim Guide for Developing a State Transportation Research Manual. National Academies Press, 1995.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.