Dyfyniad APA

World Health Organization. (1997). Intrauterine devices: Technical and managerial guidelines for services. World Health Organization.

Dyfyniad Arddull Chicago

World Health Organization. Intrauterine Devices: Technical and Managerial Guidelines for Services. Geneva: World Health Organization, 1997.

Dyfyniad MLA

World Health Organization. Intrauterine Devices: Technical and Managerial Guidelines for Services. World Health Organization, 1997.

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