Dyfyniad APA
Romero, A. T., & Torres, R. (2001). Switzerland. International Labour Office.
Dyfyniad Arddull Chicago
Romero, Ana Teresa, and Raymond Torres. Switzerland. Geneva: International Labour Office, 2001.
Dyfyniad MLA
Romero, Ana Teresa, and Raymond Torres. Switzerland. International Labour Office, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.