Dyfyniad APA

Institute of Quality Assurance. (1990). Quality forum. Institute of Quality Assurance.

Dyfyniad Arddull Chicago

Institute of Quality Assurance. Quality Forum. London: Institute of Quality Assurance, 1990.

Dyfyniad MLA

Institute of Quality Assurance. Quality Forum. Institute of Quality Assurance, 1990.

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