01521oam 2200445 450 991070396570332120150903094640.0(CKB)5470000002436083(OCoLC)882310403(EXLCZ)99547000000243608320140701d1908 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierThe strength of concrete beams results of tests of 108 beams (first series) made at the structural materials testing laboratories /by Richard L. HumphreyWashington, D.C. :Department of the Interior, United States Geological Survey,1908.Washington :Government Printing Office.1 online resource (59 pages, I page of plates) illustrationsBulletin / United States Geological Survey ;no. 344Title from title screen (viewed June 27, 2014).Includes index.Strength of concrete beams ConcreteTestingConcreteTestingfastConcreteTesting.ConcreteTesting.Humphrey Richard Lewis1869-1928,1411545Geological Survey (U.S.),COPCOPOCLCOOCLCFOCLCAGPOBOOK9910703965703321The strength of concrete beams3529667UNINA