Gaya APA
Porter, Michael E. (2008).
On Competition .
Amerika:
A Harvard Business Riview Book.
Gaya Chicago
Porter, Michael E.
On Competition.
Amerika:
A Harvard Business Riview Book,
2008.
Text.
Gaya MLA
Porter, Michael E.
On Competition.
Amerika:
A Harvard Business Riview Book,
2008.
Text.
Gaya Turabian
Porter, Michael E.
On Competition.
Amerika:
A Harvard Business Riview Book,
2008.
Print.