Bullen, Stephen. <br/><br/>
Professional Excel development   the definitive guide to developing applications using Microsoft Excal and VBA /   [electronic resource] :  
Stephen Bullen, Rob Bovey, John Green ; [edited by] Joan Murray, Kristy Hart, Gina Kanouse. 
 - Indianapolis, IN :   Addison Wesley Professional,   2005. 
 - p. cm. 
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<br/><br/><br/>Electronic reproduction.  <br/>Boston, MA :  <br/>Safari,  <br/>2005.  <br/>Available via World Wide Web. 
<br/><br/><br/>Mode of access: World Wide Web. 
<br/><br/>Made available through: Safari Books Online, LLC. 
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