Dyfyniad APA

Foskett, A. (1961). universal decimal classification (3rd ed.). British Standards Institution.

Dyfyniad Arddull Chicago

Foskett, A.C. Universal Decimal Classification. 3rd ed. London: British Standards Institution, 1961.

Dyfyniad MLA

Foskett, A.C. Universal Decimal Classification. 3rd ed. British Standards Institution, 1961.

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