Dyfyniad APA

FRYE, C. D. (2007). MICROSOFT OFFICE EXCEL 2007: STEP BY STEP (WITH CD). PHI.

Dyfyniad Arddull Chicago

FRYE, C D. MICROSOFT OFFICE EXCEL 2007: STEP BY STEP (WITH CD). New Delhi: PHI, 2007.

Dyfyniad MLA

FRYE, C D. MICROSOFT OFFICE EXCEL 2007: STEP BY STEP (WITH CD). PHI, 2007.

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