Dyfyniad APA

World Health Organization & World Health Organization. Chrysotile asbestos.

Dyfyniad Arddull Chicago

World Health Organization and World Health Organization. Chrysotile Asbestos.

Dyfyniad MLA

World Health Organization and World Health Organization. Chrysotile Asbestos.

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