Gaya APA

Locker, K, O., Kaczmarek, S, K. (2007). Communication business: building critical skills (Ed. 3). New York: McGraw-Hill.

Gaya MLA

Locker, Kitty, O.., Kaczmarek, Stephen, Kyo. "Communication business: building critical skills". Ed. 3 New York: McGraw-Hill, 2007. Text.