O'Keefe, T. L., & Tara Lynn O'Keefe; Elizabeth Eisner Reding; Barbara Clemens. (2000). Course Learning System: Microsoft Excel 2000 Illustrated INTERMEDIATE. Cambridge, MA: Course Technology.
استشهاد بنمط شيكاغوO'Keefe, Tara Lynn, و Tara Lynn O'Keefe; Elizabeth Eisner Reding; Barbara Clemens. Course Learning System: Microsoft Excel 2000 Illustrated INTERMEDIATE. Cambridge, MA: Course Technology, 2000.
MLA استشهادO'Keefe, Tara Lynn, و Tara Lynn O'Keefe; Elizabeth Eisner Reding; Barbara Clemens. Course Learning System: Microsoft Excel 2000 Illustrated INTERMEDIATE. Cambridge, MA: Course Technology, 2000.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.