LEADER 01234aam 2200373I 450 001 9910710278003321 005 20160121100808.0 024 8 $aGOVPUB-C13-052d36d30cddcd15c91cbf954a683014 035 $a(CKB)5470000002476504 035 $a(OCoLC)935499570 035 $a(EXLCZ)995470000002476504 100 $a20160121d1981 ua 0 101 0 $aeng 181 $2rdacontent 182 $2rdamedia 183 $2rdacarrier 200 10$aEvaluation of exit directional symbols /$fNeil D. Lerner 210 1$aGaithersburg, MD :$cU.S. Dept. of Commerce, National Institute of Standards and Technology,$d1981. 215 $a1 online resource 225 1 $aNBSIR ;$v81-2268 300 $a1981. 300 $aContributed record: Metadata reviewed, not verified. Some fields updated by batch processes. 300 $aTitle from PDF title page. 320 $aIncludes bibliographical references. 700 $aLerner$b Neil D$01397254 701 $aLerner$b Neil D$01397254 712 02$aUnited States.$bNational Bureau of Standards. 801 0$bNBS 801 1$bNBS 801 2$bGPO 906 $aBOOK 912 $a9910710278003321 996 $aEvaluation of exit directional symbols$93530198 997 $aUNINA