Gaya APA
Porter, Michael E.. (2004).
Competitive strategy: techniques for analyzing industries and competitors .
New York:
Free Press.
Gaya Chicago
Porter, Michael E..
Competitive strategy: techniques for analyzing industries and competitors.
New York:
Free Press,
2004.
Text.
Gaya MLA
Porter, Michael E..
Competitive strategy: techniques for analyzing industries and competitors.
New York:
Free Press,
2004.
Text.
Gaya Turabian
Porter, Michael E..
Competitive strategy: techniques for analyzing industries and competitors.
New York:
Free Press,
2004.
Print.