Walkenbach, John    <br/><br/>
Excel 2007 formulas /  
John Walkenbach    
 - Indiapolis :  Wiley Publishing,   2007    
 - xxxii;804p. :  ill.;   23cm.    
<br/><br/>Includes index and CD-ROM    
<br/><br/><label>ISBN: </label>9780470044025    
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business--Computer programs <br/>Microsoft excel