Lua APA (7ú heag.)

KRUGMAN, P. R., & OBSTFELD, M. (1987). International economics: Theory and policy. Scott.

Lua i Stíl Chicago (17ú heag.)

KRUGMAN, Paul R., agus Maurice OBSTFELD. International Economics: Theory and Policy. Glenview: Scott, 1987.

Lua MLA (9ú heag.)

KRUGMAN, Paul R., agus Maurice OBSTFELD. International Economics: Theory and Policy. Scott, 1987.

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