Lotus 1-2-3 The Bussiness Software Integrating Spreadsheet, Graphics And Database Reference Manual Release 2.01. s.n.
Chicago-viite (17. p.)Lotus 1-2-3 The Bussiness Software Integrating Spreadsheet, Graphics And Database Reference Manual Release 2.01. s.n.
MLA-viite (8. p.)Lotus 1-2-3 The Bussiness Software Integrating Spreadsheet, Graphics And Database Reference Manual Release 2.01. s.n.
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