Dyfyniad APA

Sergio Elliot. (1990). FAO economic and social development paper N.67: Distance education systems. Rome: FAO.

Dyfyniad Arddull Chicago

Sergio Elliot. FAO Economic and Social Development Paper N.67: Distance Education Systems. Rome: FAO, 1990.

Dyfyniad MLA

Sergio Elliot. FAO Economic and Social Development Paper N.67: Distance Education Systems. Rome: FAO, 1990.

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