Gaya APA
PORTER, Michael E.. (1998).
COMPETITIVE ADVANTAGE: Creating & Sustaining Superior Performance .
:
.
Gaya Chicago
PORTER, Michael E..
COMPETITIVE ADVANTAGE: Creating & Sustaining Superior Performance.
:
,
1998.
Text.
Gaya MLA
PORTER, Michael E..
COMPETITIVE ADVANTAGE: Creating & Sustaining Superior Performance.
:
,
1998.
Text.
Gaya Turabian
PORTER, Michael E..
COMPETITIVE ADVANTAGE: Creating & Sustaining Superior Performance.
:
,
1998.
Print.