Dyfyniad APA

Institution, 8. B. S. (1990). Terms associated with refractory materials. London : British Standards Institution.

Dyfyniad Arddull Chicago

Institution, 8096 British Standards. Terms Associated with Refractory Materials. London : British Standards Institution, 1990.

Dyfyniad MLA

Institution, 8096 British Standards. Terms Associated with Refractory Materials. London : British Standards Institution, 1990.

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