Gaya APA

Himstreet, W, C., Baty, W, M. (1990). Business Communications : Principles and Methods (Edisi 9). United States of Amerika: PWS Pub. Co..

Gaya MLA

Himstreet, William, C.., Baty, Wayne, M.. "Business Communications : Principles and Methods". Edisi 9 United States of Amerika: PWS Pub. Co., 1990. Text.