Dyfyniad APA

Wright, F. B. (1969). Rural water supply and sanitation (2.). Wiley Eastern Limited.

Dyfyniad Arddull Chicago

Wright, F B. Rural Water Supply and Sanitation. 2. New Delhi: Wiley Eastern Limited, 1969.

Dyfyniad MLA

Wright, F B. Rural Water Supply and Sanitation. 2. Wiley Eastern Limited, 1969.

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