Penggayaan APA
JEFKINS, Frank. (1982).
Essential of Public Relations .
Singapore:
Heinemann Educational Books Ltd.
Chicago Style
JEFKINS, Frank.
Essential of Public Relations.
Singapore:
Heinemann Educational Books Ltd,
1982.
Text.
MLA Style
JEFKINS, Frank.
Essential of Public Relations.
Singapore:
Heinemann Educational Books Ltd,
1982.
Text.
Turabian Style
JEFKINS, Frank.
Essential of Public Relations.
Singapore:
Heinemann Educational Books Ltd,
1982.
Print.