CHARLES, D. D. O. (1997). Air transportation in Nigeria strategies for 21st century. : The Nigeria Stock Exchange.
Lua i Stíl Chicago (17ú heag.)CHARLES, Diepiriye David Onyiuke. Air Transportation in Nigeria Strategies for 21st Century. : The Nigeria Stock Exchange, 1997.
Lua MLA (9ú heag.)CHARLES, Diepiriye David Onyiuke. Air Transportation in Nigeria Strategies for 21st Century. : The Nigeria Stock Exchange, 1997.
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