APA Style
Covey, Stephen R.. (1997).
Principle-Centered Leadership (Ed. 163).
Jakarta:
Binarupa Aksara.
Chicago Style
Covey, Stephen R..
Principle-Centered Leadership.
Ed. 163
Jakarta:
Binarupa Aksara,
1997.
Text.
MLA Style
Covey, Stephen R..
Principle-Centered Leadership.
Ed. 163
Jakarta:
Binarupa Aksara,
1997.
Text.
Turabian Style
Covey, Stephen R..
Principle-Centered Leadership.
Ed. 163
Jakarta:
Binarupa Aksara,
1997.
Print.