Dyfyniad APA

(1982). Appropriate methods of treating : water and: Wastewater in developing countries. Ann Arbor Science.

Dyfyniad Arddull Chicago

Appropriate Methods of Treating : Water and: Wastewater in Developing Countries. Ann Arbor: Ann Arbor Science, 1982.

Dyfyniad MLA

Appropriate Methods of Treating : Water and: Wastewater in Developing Countries. Ann Arbor Science, 1982.

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