00550nam a22002174a 450000100060000003500200000600300090002600500170003500800410005202000150009304000350010804100080014304400080015110000230015924500320018226400540021430000300026865000090029865000130030765000120032037670 a(Koha2011)73618AR-ReUNN20260717065253.0240606s1977 xxu eng d a081381815X aAR-ReUNNbspacAR-ReUNNeaacr20 aeng axxu1 aDegenkolb, Oris H.10aConcrete box girder bridges 1aMichigan : bAmerican Concrete Institute, c1977. aix, 106 páginas : bil. 7aViga 4aHormigon 4aPuentes