APA Style
Krugman, Paul R. & Obstfeld, Maurice. (2003).
International Economics Theory & Policy (Sixth edition).
USA:
Addison Wesley.
Chicago Style
Krugman, Paul R. & Obstfeld, Maurice.
International Economics Theory & Policy.
Sixth edition
USA:
Addison Wesley,
2003.
Text.
MLA Style
Krugman, Paul R. & Obstfeld, Maurice.
International Economics Theory & Policy.
Sixth edition
USA:
Addison Wesley,
2003.
Text.
Turabian Style
Krugman, Paul R. & Obstfeld, Maurice.
International Economics Theory & Policy.
Sixth edition
USA:
Addison Wesley,
2003.
Print.