Gaya APA

Kaczmarek, K, O, L, &, S, K. (2007). Business Communication : Building Critical Skills (Edisi Keempat). : McGraw-Hill.

Gaya MLA

Kaczmarek, Kitty, O., Locker, &, Stephen, Kyo. "Business Communication : Building Critical Skills". Edisi Keempat : McGraw-Hill, 2007. Text.