Dyfyniad APA

Unesco. (1955). Bibliographical services throughout the world. Unesco.

Dyfyniad Arddull Chicago

Unesco. Bibliographical Services Throughout the World. Paris: Unesco, 1955.

Dyfyniad MLA

Unesco. Bibliographical Services Throughout the World. Unesco, 1955.

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