Dyfyniad APA

(1975). A study of the evolution of concentration in the United Kingdom. Luxembourg: Office for Official Publications of The European Communities.

Dyfyniad Arddull Chicago

A Study of the Evolution of Concentration in the United Kingdom. Luxembourg: Office for Official Publications of The European Communities, 1975.

Dyfyniad MLA

A Study of the Evolution of Concentration in the United Kingdom. Luxembourg: Office for Official Publications of The European Communities, 1975.

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