Dyfyniad APA

(1993). On business and work. Geneva: International Labour Office.

Dyfyniad Arddull Chicago

On Business and Work. Geneva: International Labour Office, 1993.

Dyfyniad MLA

On Business and Work. Geneva: International Labour Office, 1993.

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