APA ציטוט
Covey Stephen R. (2004). The 7 habits of highly effective people. Pocket Books.
Chicago Style (17th ed.) Citation
Covey Stephen R. The 7 Habits of Highly Effective People. New York: Pocket Books, 2004.
ציטוט MLA
Covey Stephen R. The 7 Habits of Highly Effective People. Pocket Books, 2004.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.