APA (7. basım) Alıntı

Porter, M. E. (1998). Competitive Strategy (ain.). Simon & Schuster UK Ltd.

Chicago Style (17. basım) Atıf

Porter, Michael E. Competitive Strategy. ain. Great Brit: Simon & Schuster UK Ltd, 1998.

MLA (9th ed.) Atıf

Porter, Michael E. Competitive Strategy. ain. Simon & Schuster UK Ltd, 1998.