O'Connor, W. E. (2001). An introduction to airline economics (6th ed.). Westport, Conn.: Praeger.
Chicago Stili AlıntıO'Connor, William E. An Introduction to Airline Economics. 6th ed. Westport, Conn.: Praeger, 2001.
MLA AlıntıO'Connor, William E. An Introduction to Airline Economics. 6th ed. Westport, Conn.: Praeger, 2001.
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