01585nam 2200445Ia 450 991071110510332120180711120952.0GOVPUB-C13-895ee0a14d15941666778e21e0cb241f(CKB)5470000002480965(OCoLC)957470671(OCoLC)995470000002480965(EXLCZ)99547000000248096520160829d1961 ua 0engtxtrdacontentcrdamediacrrdacarrierThe soiling characteristics of structural masonry units report /William C. Cullen, William W. WaltonGaithersburg, MD :U.S. Dept. of Commerce, National Institute of Standards and Technology,1961.1 online resourceNBS report ;70651961.Contributed record: Metadata reviewed, not verified. Some fields updated by batch processes.Title from PDF title page.Includes bibliographical references.Soiling characteristics of structural masonry units MasonryCleaningTestingMasonryCleaningTesting.Cullen William C1388807Cullen William C1388807Walton William W1413135United States.National Bureau of Standards.NBSNBSOCLCOOCLCQBOOK9910711105103321The soiling characteristics of structural masonry units3524788UNINA