Dyfyniad APA

Perenchio, W. F., Fraczek, J., & Pfeifer, D. W. (1989). Corrosion protection of prestressing systems in concrete bridges. Transportation Research Board, National Research Council.

Dyfyniad Arddull Chicago

Perenchio, W. F., J. Fraczek, and D. W. Pfeifer. Corrosion Protection of Prestressing Systems in Concrete Bridges. Washington, D.C: Transportation Research Board, National Research Council, 1989.

Dyfyniad MLA

Perenchio, W. F., et al. Corrosion Protection of Prestressing Systems in Concrete Bridges. Transportation Research Board, National Research Council, 1989.

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