Παραπομπή APA
Cooper, G. (1979). A voluntary tax: New perspectives on sophisticated estate tax avoidance. Washington: Brookings Institution.
Παραπομπή Chicago StyleCooper, George. A Voluntary Tax: New Perspectives On Sophisticated Estate Tax Avoidance. Washington: Brookings Institution, 1979.
Παραπομπή MLACooper, George. A Voluntary Tax: New Perspectives On Sophisticated Estate Tax Avoidance. Washington: Brookings Institution, 1979.
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