Horowitz Ben. (2014). The hard thing about hard things: Building a business when there are no easy answers. HarperCollins.
Chicago Style (17th ed.) CitationHorowitz Ben. The Hard Thing About Hard Things: Building a Business When There Are No Easy Answers. New York: HarperCollins, 2014.
ציטוט MLAHorowitz Ben. The Hard Thing About Hard Things: Building a Business When There Are No Easy Answers. HarperCollins, 2014.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.