Dyfyniad APA

(1986). Metals and Alloys in the Unified Numbering System (4th ed.). Society of Automotive Engineers.

Dyfyniad Arddull Chicago

Metals and Alloys in the Unified Numbering System. 4th ed. Warrendle: Society of Automotive Engineers, 1986.

Dyfyniad MLA

Metals and Alloys in the Unified Numbering System. 4th ed. Society of Automotive Engineers, 1986.

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