Dyfyniad APA

American Federation of Labor. (1921). Weekly news service. American Federation of Labor.

Dyfyniad Arddull Chicago

American Federation of Labor. Weekly News Service. Washington, D.C.: American Federation of Labor, 1921.

Dyfyniad MLA

American Federation of Labor. Weekly News Service. American Federation of Labor, 1921.

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