Maintenance of NAS enroute stage a air traffic control system.
Detalles de publicación: [Washington, D.C., 1971].Descripción: xxxvi, 790 p. : illTema(s):No hay ítems correspondientes a este registro
[Handbook].
Dec. 6, 1968, and Changes 1-4, [1969-1971].
[Reprinted Oct. 4, 1971].
Cover title.
4to.
[Reprint to include Changes. Issued with perforations].
CRDP Program Historic Shelflist record.
Official use. Not available.