Lua APA (7ú heag.)

KRUGMAN PAUL R. (2000). INTERNATIONAL ECONOMICS: THEORY AND POLICY (5TH.). ADDISON-WESLEY.

Lua i Stíl Chicago (17ú heag.)

KRUGMAN PAUL R. INTERNATIONAL ECONOMICS: THEORY AND POLICY. 5TH. USA: ADDISON-WESLEY, 2000.

Lua MLA (9ú heag.)

KRUGMAN PAUL R. INTERNATIONAL ECONOMICS: THEORY AND POLICY. 5TH. ADDISON-WESLEY, 2000.

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