Microsoft Office Excel 2007 step by step / 
Curtis D. Frye. 
 - 1st  ed. 
 - Redmond, Washington :  Microsoft Press,  2007. 
 - lxiii, 367  p. +  1 CD-ROM. 
<br/><br/><label>ISBN: </label>073562304x : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microsoft Excel (Computer file)<br/>Business--Computer programs.<br/>Electronic spreadsheets.