Gaya APA

Krugman, Paul R.. (2009). International economics: theory & policy . New York: Pearson Prentice Hall.

Gaya Chicago

Krugman, Paul R.. International economics: theory & policy. New York: Pearson Prentice Hall, 2009. Text.

Gaya MLA

Krugman, Paul R.. International economics: theory & policy. New York: Pearson Prentice Hall, 2009. Text.

Gaya Turabian

Krugman, Paul R.. International economics: theory & policy. New York: Pearson Prentice Hall, 2009. Print.