Gaya APA

Locker, K, O., Kaczmarek, S, K. (2004). Business Communication: Building Critical Skills (Ed. 2). Boston: McGraw-Hill.

Gaya MLA

Locker, Kitty, O., Kaczmarek, Stephen, Kyo. "Business Communication: Building Critical Skills". Ed. 2 Boston: McGraw-Hill, 2004. .