Dyfyniad APA

World Health Organization. (2000). Tools for assessing the O&M status of water supply and sanitation in developing countries. World Health Organization.

Dyfyniad Arddull Chicago

World Health Organization. Tools for Assessing the O&M Status of Water Supply and Sanitation in Developing Countries. Geneva: World Health Organization, 2000.

Dyfyniad MLA

World Health Organization. Tools for Assessing the O&M Status of Water Supply and Sanitation in Developing Countries. World Health Organization, 2000.

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