KRUGMAN, P. R. (2012). International economics: Theory & policy ninth edition. Pearson Education Limited.
Lua i Stíl Chicago (17ú heag.)KRUGMAN, Paul R. International Economics: Theory & Policy Ninth Edition. Pearson Education Limited, 2012.
Lua MLA (8ú heag.)KRUGMAN, Paul R. International Economics: Theory & Policy Ninth Edition. Pearson Education Limited, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.