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035   $a(CKB)4970000000019956
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100   $a20240129c2002uuuu  -u-            -
101 0 $aeng
200 00$aCommercial aviation : air service trends at small communities since October 2000
210   $aWashington, D.C
517   $aCommercial Aviation
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996   $aCommercial aviation$93426207
997   $aUNINA