Gaya APA
Jefkins, Frank. (1988).
Public relations Frank Jefkins (3rd ed).
London:
Pitman.
Gaya Chicago
Jefkins, Frank.
Public relations Frank Jefkins.
3rd ed
London:
Pitman,
1988.
Text.
Gaya MLA
Jefkins, Frank.
Public relations Frank Jefkins.
3rd ed
London:
Pitman,
1988.
Text.
Gaya Turabian
Jefkins, Frank.
Public relations Frank Jefkins.
3rd ed
London:
Pitman,
1988.
Print.