Lua APA (7ú heag.)

CARBAUGH ROBERT J. (2004). INTERNATIONAL ECONOMICS 9 ED (9TH.). THOMSON SOUTH-WESTERN.

Lua i Stíl Chicago (17ú heag.)

CARBAUGH ROBERT J. INTERNATIONAL ECONOMICS 9 ED. 9TH. AUSTRALIA: THOMSON SOUTH-WESTERN, 2004.

Lua MLA (9ú heag.)

CARBAUGH ROBERT J. INTERNATIONAL ECONOMICS 9 ED. 9TH. THOMSON SOUTH-WESTERN, 2004.

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