Booher, D. D. (2009). Booher's rules of business grammar: 101 fast and easy ways to correct the most common errors. McGraw-Hill.
Citace podle Chicago (17th ed.)Booher, Dianna Daniels. Booher's Rules of Business Grammar: 101 Fast and Easy Ways to Correct the Most Common Errors. New York: McGraw-Hill, 2009.
Citace podle MLA (9th ed.)Booher, Dianna Daniels. Booher's Rules of Business Grammar: 101 Fast and Easy Ways to Correct the Most Common Errors. McGraw-Hill, 2009.
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