Cooke, R. A. (2001). Doing business tax-free: Perfectly legal techniques to reduce or eliminate your federal business taxes. John Wiley & Sons.
Chicago-tyylinen lähdeviittausCooke, Robert A. Doing Business Tax-free: Perfectly Legal Techniques to Reduce or Eliminate Your Federal Business Taxes. John Wiley & Sons, 2001.
MLA-viiteCooke, Robert A. Doing Business Tax-free: Perfectly Legal Techniques to Reduce or Eliminate Your Federal Business Taxes. John Wiley & Sons, 2001.
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