Covey, S. R. (2006). The 8th habit personal workbook (1st Free Press trade pbk. ed.). Free Press.
Chicago Style (17th ed.) CitationCovey, Stephen R. The 8th Habit Personal Workbook. 1st Free Press trade pbk. ed. New York: Free Press, 2006.
ציטוט MLACovey, Stephen R. The 8th Habit Personal Workbook. 1st Free Press trade pbk. ed. Free Press, 2006.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.