Dyfyniad APA

Perry, G., Cazzola, M., & Fulton, J. OpenOffice.org2, Firefox and Thunderbird for Windows. Sams Publishim.

Dyfyniad Arddull Chicago

Perry, Greg, M.T Cazzola, and Jennifer Fulton. OpenOffice.org2, Firefox and Thunderbird for Windows. Estados Unidos de América: Sams Publishim.

Dyfyniad MLA

Perry, Greg, et al. OpenOffice.org2, Firefox and Thunderbird for Windows. Sams Publishim.

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