00670nam0 2200229 450 00001009220180704101638.020080418d1952----km-y0itay50------baengUSCAGBa-------001yyAir pilot trainingby Bert A. Shields4th ed.New YorkTorontoLondonMcGraw-Hill book company1952IX, 602 p.ill.24 cm629.13218Shields,Bert A.630984ITUNIPARTHENOPE20080418RICAUNIMARC000010092629.132/10714474PISTAir pilot training1203718UNIPARTHENOPE