Dyfyniad APA

(1930). Certain welded carbon steel pipes and tubes from Taiwan. Washington.

Dyfyniad Arddull Chicago

Certain Welded Carbon Steel Pipes and Tubes From Taiwan. Washington, 1930.

Dyfyniad MLA

Certain Welded Carbon Steel Pipes and Tubes From Taiwan. Washington, 1930.

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