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200 00$aEmergency alert and warning systems $ecurrent knowledge and future research directions /$fThe National Academies of Sciences, Engineering, Medicine
210  1$aWashington, DC :$cThe National Academies Press,$d[2018]
210  4$dİ2018
215   $a1 online resource (xiv, 128 pages) $cillustrations
311   $a0-309-46737-3 
606   $aEmergency communication systems$zUnited States
606   $aPublic safety radio service$zUnited States
608   $aElectronic books.
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615  0$aPublic safety radio service
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712 02$aNational Academies of Sciences, Engineering, Medicine.
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996   $aEmergency alert and warning systems$92130667
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