Gaya APA
Gerber, James. (2008).
International economics .
Canada:
Pearson Prentice Hall.
Gaya Chicago
Gerber, James.
International economics.
Canada:
Pearson Prentice Hall,
2008.
Text.
Gaya MLA
Gerber, James.
International economics.
Canada:
Pearson Prentice Hall,
2008.
Text.
Gaya Turabian
Gerber, James.
International economics.
Canada:
Pearson Prentice Hall,
2008.
Print.