共 50 条
- [3] DIVERSIFICATION IN MAJOR UNITED-STATES AIRLINES [J]. TRANSPORTATION JOURNAL, 1983, 22 (03) : 47 - 63
- [4] PROFIT CYCLE AHEAD FOR UNITED-STATES AIRLINES [J]. AVIATION WEEK & SPACE TECHNOLOGY, 1994, 140 (23): : 32 - 32
- [5] UNITED-STATES AIRLINES TAPPING CANADIAN MARKET [J]. AVIATION WEEK & SPACE TECHNOLOGY, 1983, 118 (16): : 42 - 43
- [6] UNITED-STATES AIRLINES DOMINATE INTERNATIONAL TRAFFIC [J]. AVIATION WEEK & SPACE TECHNOLOGY, 1994, 141 (09): : 32 - 32
- [7] UNITED-STATES AIRLINES REPORT TRAFFIC GAINS [J]. AVIATION WEEK & SPACE TECHNOLOGY, 1983, 119 (12): : 30 - 31
- [8] UNITED-STATES AIRLINES READY FOR RETURN TO PROFITS [J]. AVIATION WEEK & SPACE TECHNOLOGY, 1994, 141 (04): : 28 - 29
- [9] UNITED-STATES AIRLINES SHOW TRAFFIC GROWTH [J]. AVIATION WEEK & SPACE TECHNOLOGY, 1983, 119 (11): : 34 - 34