Gaya APA
CUTLIP, S, M. (1982).
Effective public relation / Scott M. Cutlip, Allen H. Center (5th. ed).
:
Prentice-Hall.
Gaya MLA
CUTLIP, Scott, M.
"Effective public relation / Scott M. Cutlip, Allen H. Center".
5th. ed
:
Prentice-Hall,
1982.
Referensi.