Gaya APA

Covey, Stephen R.. (2004). The 8 Habit ; From Effectiveness To Greatnes . New York: The Free Press.

Gaya Chicago

Covey, Stephen R.. The 8 Habit ; From Effectiveness To Greatnes. New York: The Free Press, 2004. BUKU.

Gaya MLA

Covey, Stephen R.. The 8 Habit ; From Effectiveness To Greatnes. New York: The Free Press, 2004. BUKU.

Gaya Turabian

Covey, Stephen R.. The 8 Habit ; From Effectiveness To Greatnes. New York: The Free Press, 2004. BUKU.