Michael E.Porter. (1998). Competitive Strategy (NA.). A Division of Simon & Schuster, Inc.
Chicago Style (17th ed.) CitationMichael E.Porter. Competitive Strategy. NA. New York: A Division of Simon & Schuster, Inc, 1998.
ציטוט MLAMichael E.Porter. Competitive Strategy. NA. A Division of Simon & Schuster, Inc, 1998.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.