Gaya APA
MENNING, J. et al
(1980).
Communicating through letters and reports
(
7th ed.)
.
Homewood, Ill.:
R. D. Irwin.
Gaya MLA
MENNING, J.H.. et al.
"Communicating through letters and reports".
7th ed.
Homewood, Ill.:
R. D. Irwin,
1980.
Buku.