Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (8th εκδ.)

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