APA (7th ed.) Zitazioa
McConnell R. Campbell & Brue, S. L. (2005). Economics: Principles, problems, and policies (16th ed.). Mc Graw- Hill.
Chicago Style (17th ed.) Zitazioa
McConnell R. Campbell eta Stanley L. Brue. Economics: Principles, Problems, and Policies. 16th ed. Newyork: Mc Graw- Hill, 2005.
MLA (9th ed.) Zitazioa
McConnell R. Campbell eta Stanley L. Brue. Economics: Principles, Problems, and Policies. 16th ed. Mc Graw- Hill, 2005.
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