O'Leary, T. J., & O'Leary, L. I. (2011). Microsoft Excel 2010: A case approach (Introductory ed.). McGraw-Hill.

O'Leary, Timothy J., and Linda I. O'Leary. Microsoft Excel 2010: A Case Approach. Introductory ed. New York: McGraw-Hill, 2011.

O'Leary, Timothy J., and Linda I. O'Leary. Microsoft Excel 2010: A Case Approach. Introductory ed. McGraw-Hill, 2011.