Locker, K. O. (1997). Business and administrative communication (4th ed.). Irwin McGraw Hill.
Chicago Style aipamenaLocker, Kitty O. Business and Administrative Communication. 4th ed. Boston: Irwin McGraw Hill, 1997.
MLA aipamenaLocker, Kitty O. Business and Administrative Communication. 4th ed. Irwin McGraw Hill, 1997.
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