Dyfyniad APA

World Health Organization & World Health Organization. Methyl bromide.

Dyfyniad Arddull Chicago

World Health Organization and World Health Organization. Methyl Bromide.

Dyfyniad MLA

World Health Organization and World Health Organization. Methyl Bromide.

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