Dyfyniad APA

(1971). Water supply and wastewater disposal in developing countries. Bangkok.

Dyfyniad Arddull Chicago

Water Supply and Wastewater Disposal in Developing Countries. Bangkok, 1971.

Dyfyniad MLA

Water Supply and Wastewater Disposal in Developing Countries. Bangkok, 1971.

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