APA ציטוט
Ries, A. (1996). Focus: The future of your company depends on it. HarperBusiness.
Chicago Style (17th ed.) Citation
Ries, Al. Focus: The Future of Your Company Depends on It. New York: HarperBusiness, 1996.
ציטוט MLA
Ries, Al. Focus: The Future of Your Company Depends on It. HarperBusiness, 1996.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.