Dyfyniad APA

Barker, T. C. (1960). Pilkington brothers and the glass industry. London: Allen & Unwin.

Dyfyniad Arddull Chicago

Barker, Theodore Cardwell. Pilkington Brothers and the Glass Industry. London: Allen & Unwin, 1960.

Dyfyniad MLA

Barker, Theodore Cardwell. Pilkington Brothers and the Glass Industry. London: Allen & Unwin, 1960.

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