Locker, K. O. (2000). Business and administrative communication [ada cd]Kitty O. Locker. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Locker, Kitty O. Business and Administrative Communication [ada Cd]Kitty O. Locker. McGraw-Hill, 2000.
Lua MLA (8ú heag.)Locker, Kitty O. Business and Administrative Communication [ada Cd]Kitty O. Locker. McGraw-Hill, 2000.
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