TY - BOOK AU - Cox , Joyce, AU - Preppernau,Joan TI - Microsoft Office Powerpoint 2007 step by step T2 - Step by step SN - 9780735623019 AV - T385 PY - 2007/// CY - Redmond, Wash. PB - Microsoft Press, KW - Presentation graphics software N1 - Includes bibliographical references. ER -