Gaya APA
CULTIP, S, M, A, H, C.
(1978).
Effective Public Relations
.
:
Prentice-Hall, New Jarsey, America.
Gaya MLA
CULTIP, Scott, M.,, Allen, H., Center.
"Effective Public Relations".
:
Prentice-Hall, New Jarsey, America,
1978.
Text.