Egbert Jeschke

Microsoft® Excel® 2010 Formulas and Functions Inside Out  Egbert Jeschke Paperback. Microsoft Press, 2011-12-29 ISBN 9780735658028     Microsoft Excel 2010 Formulas and Functions Inside Out  Egbert Jeschke Helmut Reinke Sara Unverhau Eckehard Pfeifer eBook. Pearson Education, 2011-12-22 ISBN 9780735668973