Matthews, M. S. (1992). Excel 4 for Windows made easy. Osborne McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Matthews, Martin S. Excel 4 for Windows Made Easy. Berkeley: Osborne McGraw-Hill, 1992.
Lua MLA (9ú heag.)Matthews, Martin S. Excel 4 for Windows Made Easy. Osborne McGraw-Hill, 1992.
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