APA Style
Covey, Stephen R.. (1997).
Principle Centred Leadership (1).
Jakarta:
Binarupa Aksara.
Chicago Style
Covey, Stephen R..
Principle Centred Leadership.
1
Jakarta:
Binarupa Aksara,
1997.
Text.
MLA Style
Covey, Stephen R..
Principle Centred Leadership.
1
Jakarta:
Binarupa Aksara,
1997.
Text.
Turabian Style
Covey, Stephen R..
Principle Centred Leadership.
1
Jakarta:
Binarupa Aksara,
1997.
Print.