Gaya APA

Locker, K, O., Kaczmarek, S, K. (2004). Business communication : building critical skills ed. 2 (2). Boston: McGraw Hill.

Gaya MLA

Locker, Kitty, O., Kaczmarek, Stephen, Kyo. "Business communication : building critical skills ed. 2". 2 Boston: McGraw Hill, 2004. Text.