LEADER 01191nkm  2200337   450 
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100   $a20200319d2019      ua             i
101 0 $aeng
135   $aurbn|||||||||
181   $csti$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 00$aMilestones in respiratory protection
210  1$a[Washington, D.C.] :$cCenters for Disease Control and Prevention, National Institute for Occupational Safety and Health,$d2019.
215   $a1 online resource (1 image) $cblack and white
300   $a"September 2019."
330   $aThe graphic lists major historical milestones in the development of respiratory equipment.
606   $aBreathing apparatus$xHistory
608   $aInstructional and educational works.$2lcgft
615  0$aBreathing apparatus$xHistory.
712 02$aNational Institute for Occupational Safety and Health,
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910713067203321
996   $aMilestones in respiratory protection$93269153
997   $aUNINA