Cita APA (7th ed.)

Krugman , P. R. (2017). International Economics: Theory and Policy (8th.). Pearson Education.

Cita Chicago (17th ed.)

Krugman , Paul R. International Economics: Theory and Policy. 8th. Chennai: Pearson Education, 2017.

Cita MLA (9th ed.)

Krugman , Paul R. International Economics: Theory and Policy. 8th. Pearson Education, 2017.