Lua APA (7ú heag.)

Locker, K. O. (1997). Business and administrative communication (3rd ed.). Irwin, Tata McGraw-Hill.

Lua i Stíl Chicago (17ú heag.)

Locker, Kitty O. Business and Administrative Communication. 3rd ed. Chicago : New Delhi: Irwin, Tata McGraw-Hill, 1997.

Lua MLA (8ú heag.)

Locker, Kitty O. Business and Administrative Communication. 3rd ed. Irwin, Tata McGraw-Hill, 1997.

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