Dyfyniad APA

Norton, P. (2003). Excel 2002: A tutorial to accompany Peter Norton's introduction to computers (4th ed.). Glencoe/McGraw-Hill.

Dyfyniad Arddull Chicago

Norton, Peter. Excel 2002: A Tutorial to Accompany Peter Norton's Introduction to Computers. 4th ed. Columbus, OH: Glencoe/McGraw-Hill, 2003.

Dyfyniad MLA

Norton, Peter. Excel 2002: A Tutorial to Accompany Peter Norton's Introduction to Computers. 4th ed. Glencoe/McGraw-Hill, 2003.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.