Locker, K. O. (1997). Business and administrative communication (3rd ed.). Irwin, Tata McGraw-Hill.
Chicago Style (17th ed.) CitationLocker, Kitty O. Business and Administrative Communication. 3rd ed. Chicago : New Delhi: Irwin, Tata McGraw-Hill, 1997.
ציטוט MLALocker, Kitty O. Business and Administrative Communication. 3rd ed. Irwin, Tata McGraw-Hill, 1997.
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