Gaya APA
COVEY, STEPHEN R.. (1991, 1991).
PRINCIPLE CENTERED LEADERSHIP ( Cetak ke: 13).
NEW YORK, NEW YORK:
SIMON AND SCHUSTER.
Gaya Chicago
COVEY, STEPHEN R..
PRINCIPLE CENTERED LEADERSHIP.
Cetak ke: 13
NEW YORK, NEW YORK:
SIMON AND SCHUSTER,
1991, 1991.
Text.
Gaya MLA
COVEY, STEPHEN R..
PRINCIPLE CENTERED LEADERSHIP.
Cetak ke: 13
NEW YORK, NEW YORK:
SIMON AND SCHUSTER,
1991, 1991.
Text.
Gaya Turabian
COVEY, STEPHEN R..
PRINCIPLE CENTERED LEADERSHIP.
Cetak ke: 13
NEW YORK, NEW YORK:
SIMON AND SCHUSTER,
1991, 1991.
Print.