APA aipamena

Covey Stephen. (2004). Eighth Habit: From Effectiveness to Greatness. Free Press.

Chicago Style aipamena

Covey Stephen. Eighth Habit: From Effectiveness to Greatness. New York: Free Press, 2004.

MLA aipamena

Covey Stephen. Eighth Habit: From Effectiveness to Greatness. Free Press, 2004.