01249aam 2200385I 450 991070992640332120160620103604.0GOVPUB-C13-efd90fb6221d868d9822d8b4af5450bd(CKB)5470000002475005(OCoLC)951907158(EXLCZ)99547000000247500520160620d1987 ua 0engrdacontentrdamediardacarrierDCTDOS neutron and gamma penetration in composite duct systems /L. V. SpencerGaithersburg, MD :U.S. Dept. of Commerce, National Institute of Standards and Technology,1987.1 online resourceNBSIR ;87-35341987.Contributed record: Metadata reviewed, not verified. Some fields updated by batch processes.Title from PDF title page.Includes bibliographical references.DCTDOS Spencer L. V1410103Spencer L. V1410103United States.National Bureau of Standards.NBSNBSGPOBOOK9910709926403321DCTDOS3504031UNINA