Dyfyniad APA

Institution, 8. B. S. Specification for refined nickel.

Dyfyniad Arddull Chicago

Institution, 8096 British Standards. Specification for Refined Nickel.

Dyfyniad MLA

Institution, 8096 British Standards. Specification for Refined Nickel.

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