Gaya APA
Gregory, Paul R. (2014).
The global economy and its economic systems .
Singapore:
Cengage Learning.
Gaya Chicago
Gregory, Paul R.
The global economy and its economic systems.
Singapore:
Cengage Learning,
2014.
Text.
Gaya MLA
Gregory, Paul R.
The global economy and its economic systems.
Singapore:
Cengage Learning,
2014.
Text.
Gaya Turabian
Gregory, Paul R.
The global economy and its economic systems.
Singapore:
Cengage Learning,
2014.
Print.