Williams, R. E. . .. (1986). The Manual: Lotus 1-2-3. BPB.
Chicago Edition CitationWilliams, Robert E. The Manual: Lotus 1-2-3. New Delhi: BPB, 1986.
MLA citiranjeWilliams, Robert E. The Manual: Lotus 1-2-3. BPB, 1986.
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