00691nam a22002172  4500001001300000003000500013005001700018008004100035040001800076086002000094099002000114245012000134260003100254300000700285500001200292500004400304650003500348710005300383949001800436999001900454hsl001006809DGPO20170826152555.0170113s1978    dcu     r    f000 0 eng d  aGPOcGPOdMvI0 aTD 4.8/5:70-2 C  aTD 4.8/5:70-2 C00aAirspace utilization considerations in the proposed construction alteration, activation & deactivation of airports.  a[Washington, D.C.,c1978].  av.  a4/4/78.  aCRDP Program Historic Shelflist record. 0aAirspace (Law)zUnited States.1 aUnited States.bFederal Aviation Administration.  aBEVbFed Docs  c264521d264521