Gaya APA

Kaczmarek, K, O, L, &, S, K. (2007). Bussiness Comunication : Building Critical Skills (Edisi Ketiga). : McGraw-Hill.

Gaya MLA

Kaczmarek, Kitty, O., Locker, &, Stephen, Kyo. "Bussiness Comunication : Building Critical Skills". Edisi Ketiga : McGraw-Hill, 2007. Text.