01373aam 2200373I 450 991070950330332120151030113006.0GOVPUB-C13-0e4c1a973ac64cb25bada05837b278c6(CKB)5470000002479973(OCoLC)927169549(EXLCZ)99547000000247997320151030d1979 ua 0engrdacontentrdamediardacarrierSome psycho-physical tests of the conspicuities of emergency vehicle warning lights /Gerald L. HowettGaithersburg, MD :U.S. Dept. of Commerce, National Institute of Standards and Technology,1979.1 online resourceNBS special publication ;480-361979.Contributed record: Metadata reviewed, not verified. Some fields updated by batch processes.Title from PDF title page.Includes bibliographical references.Howett Gerald Leonard1931-1402680Howett Gerald Leonard1931-1402680United States.National Bureau of Standards.NBSNBSGPOBOOK9910709503303321Some psycho-physical tests of the conspicuities of emergency vehicle warning lights3500750UNINA