Dyfyniad APA

World Health Organization. (2011). Helminth control in school-age children: A guide for managers of control programmes (2nd.). World Health Organization.

Dyfyniad Arddull Chicago

World Health Organization. Helminth Control in School-age Children: A Guide for Managers of Control Programmes. 2nd. 2011: World Health Organization, 2011.

Dyfyniad MLA

World Health Organization. Helminth Control in School-age Children: A Guide for Managers of Control Programmes. 2nd. World Health Organization, 2011.

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