Dyfyniad APA

Petrick. Making Computers Accessible. Johns Hopkins University Press.

Dyfyniad Arddull Chicago

Petrick. Making Computers Accessible. Johns Hopkins University Press.

Dyfyniad MLA

Petrick. Making Computers Accessible. Johns Hopkins University Press.

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