Gaya APA
The 7 habits of highly effective people. (2013).
London:
Simon & Schuster UK Ltd..
Gaya Chicago
The 7 habits of highly effective people.
.
London:
Simon & Schuster UK Ltd.,
2013.
Text.
Gaya MLA
The 7 habits of highly effective people.
.
London:
Simon & Schuster UK Ltd.,
2013.
Text.
Gaya Turabian
The 7 habits of highly effective people.
London:
Simon & Schuster UK Ltd.,
2013.
Print.