Gottfried, B. S. (1998). Spreadsheet tools for engineers: EXCEL 97 version. Boston, Mass: WCB McGraw-Hill.
Trích dẫn kiểu ChicagoGottfried, Byron S. Spreadsheet Tools for Engineers: EXCEL 97 Version. Boston, Mass: WCB McGraw-Hill, 1998.
Deismireacht MLAGottfried, Byron S. Spreadsheet Tools for Engineers: EXCEL 97 Version. Boston, Mass: WCB McGraw-Hill, 1998.
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