Gaya APA
Covey, Stephen R. (2004).
The 8 th habit from effectiveness to greatness .
London:
Franklin Covey.
Gaya Chicago
Covey, Stephen R.
The 8 th habit from effectiveness to greatness.
London:
Franklin Covey,
2004.
Text.
Gaya MLA
Covey, Stephen R.
The 8 th habit from effectiveness to greatness.
London:
Franklin Covey,
2004.
Text.
Gaya Turabian
Covey, Stephen R.
The 8 th habit from effectiveness to greatness.
London:
Franklin Covey,
2004.
Print.