APA (7e ed.) Bronvermelding
Porter, M. E. Harvard Business Review Book Series: On Competition (Edición actualizada y ampliada.). Harvard University, Business School.
Chicago (17e ed.) Bronvermelding
Porter, Michael E. Harvard Business Review Book Series: On Competition. Edición actualizada y ampliada. Boston, EUA: Harvard University, Business School.
MLA (9e ed.) Bronvermelding
Porter, Michael E. Harvard Business Review Book Series: On Competition. Edición actualizada y ampliada. Harvard University, Business School.
Let op: Deze citaties zijn niet altijd 100% accuraat.