Gaya APA
HAMILTON, C., PARKER, C.
(2001).
Communicating for result
(
6th. ed.)
.
Wadsworth:
Wadsworth.
Gaya MLA
HAMILTON, Cheryl., PARKER, Cordell.
"Communicating for result".
6th. ed.
Wadsworth:
Wadsworth,
2001.
Buku.