Chester, T., & Alden, R. (1997). Mastering Excel 97 (4th ed.). BPB Publications.
Chicago Style aipamenaChester, Thomas, and Richard Alden. Mastering Excel 97. 4th ed. New Delhi: BPB Publications, 1997.
MLA aipamenaChester, Thomas, and Richard Alden. Mastering Excel 97. 4th ed. BPB Publications, 1997.
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