Jelen, B. (2005). The spreadsheet at 25: 25 amazing Excel examples that evolved from the invention that changed the world! Holy Macro! Books.
Citace podle Chicago (17th ed.)Jelen, Bill. The Spreadsheet at 25: 25 Amazing Excel Examples That Evolved from the Invention That Changed the World! Uniontown, OH: Holy Macro! Books, 2005.
Citace podle MLA (9th ed.)Jelen, Bill. The Spreadsheet at 25: 25 Amazing Excel Examples That Evolved from the Invention That Changed the World! Holy Macro! Books, 2005.
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