Gaya APA
Jefkins, Frank. (1988).
Public relations techniques .
London:
Heinemann.
Gaya Chicago
Jefkins, Frank.
Public relations techniques.
London:
Heinemann,
1988.
Buku.
Gaya MLA
Jefkins, Frank.
Public relations techniques.
London:
Heinemann,
1988.
Buku.
Gaya Turabian
Jefkins, Frank.
Public relations techniques.
London:
Heinemann,
1988.
Buku.