Penggayaan APA
PORTER, Michael E.. (1983).
Cases in competitive strategy .
New York:
Free Press.
Chicago Style
PORTER, Michael E..
Cases in competitive strategy.
New York:
Free Press,
1983.
Buku.
MLA Style
PORTER, Michael E..
Cases in competitive strategy.
New York:
Free Press,
1983.
Buku.
Turabian Style
PORTER, Michael E..
Cases in competitive strategy.
New York:
Free Press,
1983.
Buku.