Baumol, W. J., & Alan S. Blinder. (1991). Economics - Principles and Policy (6.). Drydan Press.
Lua i Stíl Chicago (17ú heag.)Baumol, William J., agus Alan S. Blinder. Economics - Principles and Policy. 6. Florida: Drydan Press, 1991.
Lua MLA (9ú heag.)Baumol, William J., agus Alan S. Blinder. Economics - Principles and Policy. 6. Drydan Press, 1991.
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