Dyfyniad APA

World Health Organization. (1998). The world health report 1998: Life in the 21st century. World Health Organization.

Dyfyniad Arddull Chicago

World Health Organization. The World Health Report 1998: Life in the 21st Century. Geneva: World Health Organization, 1998.

Dyfyniad MLA

World Health Organization. The World Health Report 1998: Life in the 21st Century. World Health Organization, 1998.

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