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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.