00743nam a2200169Ia 450000100060000000300050000600500170001100800410002811000950006924501450016426000220030930000320033150400300036361000950039365000350048865000500052387779BIBL20160527204151.0751017s1952    waua          000 0 eng d10aRadio Technical Commission for Acronautics, Washington, D.C.kSpecial Committee 47.2Local10aHistoria del trafico aereocpreparado por el Comite Especial 47 de la Comision Tecnica de Radio para AeronauticacTraducido por E. E. Tixion0 aWashingtonc1952.  avi, 183 p.billus., diagrs.  aBibliography: p. 177-179.10aRadio Technical Commission for Acronautics, Washington, D.C.kSpecial Committee 47.2Local 0aAirwayszUnited States.2Local 0aAids to air navigationzUnited States.2Local