Ritter, M. A., & Wacker, J. P. ;. T. (1995). Field performance of timber bridges: Cooper creek stress- laminated deck bridge. United state department of agriculture.
Chicago-viite (17. p.)Ritter, Michael A., ja James P. ; Tice Wacker. Field Performance of Timber Bridges: Cooper Creek Stress- Laminated Deck Bridge. Washington DC: United state department of agriculture, 1995.
MLA-viite (9. p.)Ritter, Michael A., ja James P. ; Tice Wacker. Field Performance of Timber Bridges: Cooper Creek Stress- Laminated Deck Bridge. United state department of agriculture, 1995.
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