Cooke, R. A. (2001). Doing business tax-free: Perfectly legal techniques to reduce or eliminate your federal business taxes. John Wiley & Sons.
Trích dẫn kiểu ChicagoCooke, Robert A. Doing Business Tax-free: Perfectly Legal Techniques to Reduce or Eliminate Your Federal Business Taxes. John Wiley & Sons, 2001.
Trích dẫn MLACooke, Robert A. Doing Business Tax-free: Perfectly Legal Techniques to Reduce or Eliminate Your Federal Business Taxes. John Wiley & Sons, 2001.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.