00530nam 2200181z- 450 9910689349503321(CKB)5470000002331901(EXLCZ)99547000000233190120230503cuuuuuuuu -u- -engCommercial pilot : practical test standards for gliderWashington, DC0-16-049933-X Commercial pilot BOOK9910689349503321Commercial pilot : practical test standards for glider3200828UNINA