Gaya APA
Covey, Stephen R.. (2015).
Primary Greatness: The 12 Levers Of Success .
New York:
Simon & Schuster Paperbacks.
Gaya Chicago
Covey, Stephen R..
Primary Greatness: The 12 Levers Of Success.
New York:
Simon & Schuster Paperbacks,
2015.
Text.
Gaya MLA
Covey, Stephen R..
Primary Greatness: The 12 Levers Of Success.
New York:
Simon & Schuster Paperbacks,
2015.
Text.
Gaya Turabian
Covey, Stephen R..
Primary Greatness: The 12 Levers Of Success.
New York:
Simon & Schuster Paperbacks,
2015.
Print.