Spulber, N. (1995). The American economy: The struggle for supremacy in the 21st century. Univ.Pr..
Chicago Style (17th ed.) ZitazioaSpulber, Nicolas. The American Economy: The Struggle for Supremacy in the 21st Century. Cambridge: Univ.Pr., 1995.
MLA (9th ed.) ZitazioaSpulber, Nicolas. The American Economy: The Struggle for Supremacy in the 21st Century. Univ.Pr., 1995.
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