Lua APA (7ú heag.)

Lesikar, R. (2017). Business Communication (13th.). McGraw Hill.

Lua i Stíl Chicago (17ú heag.)

Lesikar, Raymond. Business Communication. 13th. McGraw Hill, 2017.

Lua MLA (9ú heag.)

Lesikar, Raymond. Business Communication. 13th. McGraw Hill, 2017.

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