APA Style
Covey, Stephen R. (1992).
Principle Centered Leadership .
New York:
Fireside (Simon & Schuster).
Chicago Style
Covey, Stephen R.
Principle Centered Leadership.
New York:
Fireside (Simon & Schuster),
1992.
Text.
MLA Style
Covey, Stephen R.
Principle Centered Leadership.
New York:
Fireside (Simon & Schuster),
1992.
Text.
Turabian Style
Covey, Stephen R.
Principle Centered Leadership.
New York:
Fireside (Simon & Schuster),
1992.
Print.