Structural performance of drainage structures : 4 reports prepared for the 52nd annual meeting /

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Kaituhi rangatōpū: National Research Council (U.S.). Highway Research Board
Hōputu: Pukapuka
Reo:Ingarihi
I whakaputaina: Washington : Highway Research Board, 1973.
Rangatū:Highway research record no. 443
Ngā marau:
Drainage.
Culverts
Roads > Accessories.
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