Frye, C. D. (2007). Excel 2007 paso a paso. Microsoft : Anaya Multimedia.
Chicago Style (17th ed.) CitationFrye, Curtis D. Excel 2007 Paso a Paso. Madrid: Microsoft : Anaya Multimedia, 2007.
MLA (9th ed.) CitationFrye, Curtis D. Excel 2007 Paso a Paso. Microsoft : Anaya Multimedia, 2007.
Warning: These citations may not always be 100% accurate.