THILL, J. V. (1991). Excellence In Business Communication John V. Thill, Courland L. Bowee. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)THILL, John V. Excellence In Business Communication John V. Thill, Courland L. Bowee. McGraw-Hill, 1991.
Lua MLA (8ú heag.)THILL, John V. Excellence In Business Communication John V. Thill, Courland L. Bowee. McGraw-Hill, 1991.
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