Dyfyniad APA

British Standards Institution. (1965). Refrigerated room air-conditioners. British Standards Institution.

Dyfyniad Arddull Chicago

British Standards Institution. Refrigerated Room Air-conditioners. London: British Standards Institution, 1965.

Dyfyniad MLA

British Standards Institution. Refrigerated Room Air-conditioners. British Standards Institution, 1965.

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