Lua APA (7ú heag.)

Koop, G. (2005). Analysis of economic data (2nd ed.). John Wiley.

Lua i Stíl Chicago (17ú heag.)

Koop, Gary. Analysis of Economic Data. 2nd ed. Chichester: John Wiley, 2005.

Lua MLA (9ú heag.)

Koop, Gary. Analysis of Economic Data. 2nd ed. John Wiley, 2005.

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