00846nam 2200253 450 00002221520090506163755.020090129d1944----km-y0itay50------baengGBfb------001yyAir navigationpublished for information and guidance off all concerned by Command of the air council[New ed.]LondonHis Majesty's Stationery Office1944290 p.c. geogr.24 cmSul front.: Air ministry, May 1944Air navigation60584Navigazione aerea629.13221Meccanica del volo, volo e soggetti connessiITUNIPARTHENOPE20090123RICAUNIMARC000022215S 629.132/1S A, 203DSA2009Air Navigation60584UNIPARTHENOPE